Cosmological Constant - the Weight of the Vacuum

Abstract

Recent cosmological observations suggest the existence of a positive cosmological constant $\Lambda$ with the magnitude $\Lambda (G\hslash /c^3)\approx 10^{-123}$. This review discusses several aspects of the cosmological constant both from the cosmological (sections 1-6) and field theoretical (sections 7-11) perspectives. The first section introduces the key issues related to cosmological constant and provides a brief historical overview. This is followed by a summary of the kinematics and dynamics of the standard Friedmann model of the universe paying special attention to features involving the cosmological constant. Section 3 reviews the observational evidence for cosmological constant, especially the supernova results, constraints from the age of the universe and a few others. Theoretical models (quintessence, tachyonic scalar field, ...) with evolving cosmological `constant' are described from different perspectives in the next section. Constraints on dark energy from structure formation and from CMBR anisotropies are discussed in the next two sections. The latter part of the review (sections 7-11) concentrates on more conceptual and fundamental aspects of the cosmological constant. Section 7 provides some alternative interpretations of the cosmological constant which could have a bearing on the possible solution to the problem. Several relaxation mechanisms have been suggested in the literature to reduce the cosmological constant to the currently observed value and some of these attempts are described in section 8. Next section gives a brief description of the geometrical structure of the de Sitter spacetime and the thermodynamics of the de Sitter universe is taken up in section 10. The last section deals with the role of string theory in the cosmological constant problem.

Final version to appear as Physics Reports; references added, typos and some labelling errors in figures corrected; 114 pages; macros included

Cited by in corpus (1977)

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• Observational constraints on interacting Tsallis holographic dark energy models
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• Screening $\Lambda$ in a new modified gravity model
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• Heal the world: Avoiding the cosmic doomsday in the holographic dark energy model
• Constraining dark energy with Hubble parameter measurements: an analysis including future redshift-drift observations
• Constraining dark energy models using the lookback time to galaxy clusters and the age of the universe
• Observational constraints on late-time Lambda(t) cosmology
• Exponential Potentials for Tracker Fields
• Physics of dark energy particles
• Cosmological Constraints on a Power Law Universe
• The effect of modified gravity on weak lensing
• Probing Dark Energy Using Its Density Instead of Its Equation of State
• Interacting new agegraphic dark energy in non-flat Brans-Dicke cosmology
• Observational Cosmology And The Cosmic Distance Duality Relation
• f(R) cosmology with torsion
• Negative cosmological constant in the dark energy sector: tests from JWST photometric and spectroscopic observations of high-redshift galaxies
• Confronting Dark Energy Models using Galaxy Cluster Number Counts
• Quintessence reconstructed: new constraints and tracker viability
• Cosmic acceleration and crossing of w=-1 barrier in non-local Cubic Superstring Field Theory model
• Stable and "bounded excursion" gravastars, and black holes in Einstein's theory of gravity
• Geodesic Motion in Schwarzschild Spacetime Surrounded by Quintessence
• Chameleon dark energy models with characteristic signatures
• Some Bianchi Type I Viscous Fluid Cosmological Models with a Variable Cosmological Constant
• Classical and quantum dynamics of a perfect fluid scalar-metric cosmology
• Curvature driven acceleration : a utopia or a reality ?
• Constructing dark energy models with late time de Sitter attractor
• Age of High Redshift Objects - a Litmus Test for the Dark Energy Models
• Remarks on generalized Gauss-Bonnet dark energy
• Relaxing the ${\sigma }_8$-tension through running vacuum in the Universe
• In search of the dark matter dark energy interaction: a kinematic approach
• Dark energy and particle mixing
• Constraining Van der Waals quintessence by observations
• Revisit of the Interaction between Holographic Dark Energy and Dark Matter
• Constraints on the DGP Model from Recent Supernova Observations and Baryon Acoustic Oscillations
• Reconstructing f(R) modified gravity from ordinary and entropy-corrected versions of the holographic and new agegraphic dark energy models
• Bayesian analysis of Friedmannless cosmologies
• Supernova constraints on decaying vacuum cosmology
• Energy conditions in generalized teleparallel gravity models
• Rastall gravity extension of the standard $\Lambda$CDM model: theoretical features and observational constraints
• Energy Conditions and Segre Classification of Phantom Fields
• Connecting early and late universe by $f(R)$ gravity
• Higher-order gravity and the cosmological background of gravitational waves
• Barrow black hole corrected-entropy model and Tsallis nonextensivity
• Integrable cosmological models with non-minimally coupled scalar fields
• Reconstruction of f(T) gravity from the Holographic dark energy
• Current constraints on the epoch of cosmic acceleration
• Density Perturbations for Running Cosmological Constant
• Weighing neutrinos in the scenario of vacuum energy interacting with cold dark matter: application of the parameterized post-Friedmann approach
• Super-acceleration on the Brane by Energy Flow from the Bulk
• Transformations between Jordan and Einstein frames: Bounces, antigravity, and crossing singularities
• Imperfect fluids, Lorentz violations and Finsler Cosmology
• Latest supernovae constraints on f(R) cosmologies
• Modified Chaplygin Gas as a Unified Dark Matter and Dark Energy Model and Cosmic Constraints
• Warm Quintessential Inflation
• Wormholes and Ringholes in a Dark-Energy Universe
• Constraints on Cold Dark Matter Accelerating Cosmologies and Cluster Formation
• Constraining $f(R)$ gravity models with disappearing cosmological constant
• A New Independent Limit on the Cosmological Constant/Dark Energy from the Relativistic Bending of Light by Galaxies and Clusters of Galaxies
• On Phantom Thermodynamics
• Could the cosmic acceleration be transient? A cosmographic evaluation
• Forecasting constraints on deviations from general relativity in $f(Q)$ gravity with standard sirens
• Accelerating dark energy models in bianchi Type-V space-time
• Dynamical Relaxation of Dark Energy: A Solution to Early Inflation, Late-time Acceleration and the Cosmological Constant Problem
• Extended quintessence with an exponential coupling
• Alleviation of Cosmic Age Problem In Interacting Dark Energy Model
• Can scale-dependent cosmology alleviate the $H_0$ tension?
• Cosmological implications of scale-independent energy-momentum squared gravity: Pseudo nonminimal interactions in dark matter and relativistic relics
• Influence of Electric Charge and Modified Gravity on Density Irregularities
• A search for sterile neutrinos with the latest cosmological observations
• Accretion of New Variable Modified Chaplygin Gas and Generalized Cosmic Chaplygin Gas onto Schwarzschild and Kerr-Newman Black holes
• Holographic dark energy in a universe with spatial curvature and massive neutrinos: a full Markov Chain Monte Carlo exploration
• Analytical solutions of the geodesic equation in the spacetime of a black hole in f(R) gravity
• Weak lensing in generalized gravity theories
• Cosmological consequences of a possible $\Lambda$-dark matter interaction
• Deformed defects for scalar fields with polynomial interactions
• Constraints on Scalar-Field Dark Energy from Galaxy Cluster Gas Mass Fraction versus Redshift
• Phantom appearance of non-phantom matter
• A parametric reconstruction of the cosmological jerk from diverse observational data sets
• Acceleration of the universe: a reconstruction of the effective equation of state
• Cosmological dynamics with propagating Lorentz connection modes of spin zero
• Chameleon scalar fields in relativistic gravitational backgrounds
• Constraints on Scalar-Field Dark Energy from the Cosmic Lens All-Sky Survey Gravitational Lens Statistics
• Non-minimally coupled f(R) Cosmology
• Cosmic acceleration without dark energy: Background tests and thermodynamic analysis
• Extended Spherical Collapse and the Accelerating Universe
• The cosmological constant as an eigenvalue of f(R)-gravity Hamiltonian constraint
• Possible theoretical limits on holographic quintessence from weak gravity conjecture
• Model-independent cosmological inference post DESI DR1 BAO measurements
• The generalized second law of gravitational thermodynamics on the apparent and event horizons in FRW cosmology
• Phantom-like behaviour in dilatonic brane-world scenario with induced gravity
• Crossing of the w=-1 barrier in viscous modified gravity
• Dynamics of Linear Perturbations in the hybrid metric-Palatini gravity
• $f(R)$-gravity from Killing Tensors
• Study of gravastars under $f(\mathbb{T})$ gravity
• Analytic solution for matter density perturbations in a class of viable cosmological f(R) models
• Constraining the Cosmology of the Phantom Brane using Distance Measures
• Holographic f(T)-gravity model with power-law entropy correction
• On compatibility of string effective action with an accelerating universe
• Black Hole Formation from Collapsing Dust Fluid in a Background of Dark Energy
• Generalized Holographic and Ricci Dark Energy Models
• Observational constraints on dark matter-dark energy scattering cross section
• Does the cosmological constant imply the existence of a minimum mass?
• Cosmological model with interactions in the dark sector
• Cosmography approach to dark energy cosmologies: new constrains using the Hubble diagrams of supernovae, quasars and gamma-ray bursts
• Dynamics of Quintom and Hessence Energies in Loop Quantum Cosmology
• Metastable Dark Energy with Radioactive-like Decay
• Some Aspects of Tachyon Field Cosmology
• Constraining the expansion rate of the Universe using low-redshift ellipticals as cosmic chronometers
• A Simple Model for Quintessential Inflation
• On the Past Asymptotic Dynamics of Non-minimally Coupled Dark Energy
• Quantum cosmology and late-time singularities
• General solution of scalar field cosmology with a (piecewise) exponential potential
• Cosmological evolution of interacting phantom (quintessence) model in Loop Quantum Gravity
• Holographic Ricci dark energy: Interacting model and cosmological constraints
• Thermodynamical properties of dark energy
• Evading Weinberg's no-go theorem to construct mass dimension one fermions: Constructing darkness
• Growth Rate of Large Scale Structure as a Powerful Probe of Dark Energy
• Dark Energy Constraints from Baryon Acoustic Oscillations
• Effective field description of the Anton-Schmidt cosmic fluid
• Current Observational Constraints on Cosmic Doomsday
• Interacting Ricci Dark Energy with Logarithmic Correction
• Is the present expansion of the universe really accelerating?
• Median Statistics and the Mass Density of the Universe
• Extended logotropic fluids as unified dark energy models
• The Higgs portal and an unified model for dark energy and dark matter
• Chaplygin gas dominated anisotropic brane world cosmological models
• On the equation of state of Dark Energy
• Dynamics and cosmological evolution in Λ-varying cosmology
• Exact scaling solutions and fixed points for general scalar field
• Bayesian Analysis and Constraints on Kinematic Models from Union SNIa
• Cheng-Weyl Vector Field and its Cosmological Application
• Cosmological Constraints from Hubble Parameter on f(R) Cosmologies
• Evolution of density perturbations in decaying vacuum cosmology
• Gravitational collapse of Bose-Einstein condensate dark matter halos
• Massive Charged Scalar Quasinormal Modes of Reissner-Nördstrom Black Hole Surrounded by Quintessence
• The Degree of Fine-Tuning in our Universe -- and Others
• Fitting the Constitution SNIa Data with Redshift Binned Parameterization Method
• Consistency of $f(R)=\sqrt{R^2-R_0^2}$ Gravity with the Cosmological Observations in Palatini Formalism
• Tachyonic Teleparallel Dark Energy
• Palatini f(R) gravity and Noether symmetry
• Non-Local Gravity Wormholes
• Cosmological evolution and statefinder diagnostic for new holographic dark energy model in non flat universe
• Bending of light in novel 4$D$ Gauss-Bonnet-de Sitter black holes by Rindler-Ishak method
• FRW Cosmology in $f(Q,T)$ Gravity
• Comparison between different methods of model selection in cosmology
• The evolution of gravitons in accelerating cosmologies: the case of extended gravity
• Dark Energy or Apparent Acceleration Due to a Relativistic Cosmological Model More Complex than FLRW?
• Dynamics of assisted quintessence
• Oscillations in the dark energy EoS: new MCMC lessons
• Testing power-law cosmology with galaxy clusters
• Can structure formation distinguish ΛCDM from non-minimal f(R) Gravity?
• Acceleration of the universe in the Einstein frame of a metric-affine f(R) gravity
• New coupled quintessence cosmology
• Theoretical tools for CMB physics
• From inflation to dark energy through a dynamical Lambda: an attempt at alleviating fundamental cosmic puzzles
• Interacting Energy Components and Observational $H(z)$ Data
• Effects of Electromagnetic Field on the Dynamics of Bianchi type $V{I}_0$ Universe with Anisotropic Dark Energy
• Constraints on a variable dark energy model with recent observations
• Holographic dark energy in Brans-Dicke theory with log correction
• Quasi-local variables in spherical symmetry: numerical applications to dark matter and dark energy sources
• Averaging in Spherically Symmetric Cosmology
• Phantom matter: a challenging solution to the cosmological tensions
• Gravitational Lensing Statistics in Universes Dominated by Dark Energy
• Cosmological Constant from the Emergent Gravity Perspective
• Stability of Charged Thin-Shell Gravastars with Quintessence
• Does Chaplygin gas have salvation?
• Dynamics of Quintessence with Thermal Interactions
• Generalized second law of thermodynamics for a phantom energy accreting BTZ black hole
• Bianchi type I universe with viscous fluid: A qualitative analysis
• Observational Constraints on Exponential Gravity
• Palatini formulation of the $R^{-1}$modified gravity with an additionally squared scalar curvature term
• UV stable, Lorentz-violating dark energy with transient phantom era
• Interacting 3-form dark energy models: distinguishing interactions and avoiding the Little Sibling of the Big Rip
• Two-fluid dark matter models
• Statefinder Diagnostic for Dilaton Dark Energy
• Dark energy: investigation and modeling
• Emergent Universe from Scale Invariant Two Measures Theory
• Nonsingular Decaying Vacuum Cosmology and Entropy Production
• Dissipative generalized Chaplygin gas as phantom dark energy
• Dark energy records in lensed cosmic microwave background
• $\Lambda (t)$ cosmology induced by a slowly varying Elko field
• Viscous dissipative Chaplygin gas dominated homogenous and isotropic cosmological models
• Modified Gravity Constraints from the Full Shape Modeling of Clustering Measurements from DESI 2024
• Scalar Field Dark Energy Perturbations and their Scale Dependence
• Classification of dark energy models in the (w_0,w_a) plane
• Mass bounds for compact spherically symmetric objects in generalized gravity theories
• Background history and cosmic perturbations for a general system of self-conserved dynamical dark energy and matter
• Non-vacuum Solutions of Bianchi Type VI_0 Universe in f(R) Gravity
• Cosmic perturbations with running G and Lambda
• Casimir Effect confronts Cosmological Constant
• Holographic Ricci dark energy in Randall-Sundrum braneworld: Avoidance of big rip and steady state future
• Is the evidence for dark energy secure?
• Anisotropic brane gravity with a confining potential
• Massive Photon and Dark Energy
• Study of Gravastars in Rastall Gravity
• Sandage-Loeb test for the new agegraphic and Ricci dark energy models
• Supernova constraints on alternative models to dark energy
• Reconstructing interacting entropy-corrected holographic scalar field models of dark energy in non-flat universe
• A Bayesian comparison between $\Lambda$CDM and phenomenologically emergent dark energy models
• On the determination of curvature and dynamical Dark Energy
• The spherical collapse model in time varying vacuum cosmologies
• New Interaction between Dark Energy and Dark Matter Changes Sign during Cosmological Evolution
• Is Mass Quantized?
• Cosmological evolution of finite temperature Bose-Einstein Condensate dark matter
• Cyclic and heteroclinic flows near general static spherically symmetric black holes
• Global stability analysis for cosmological models with non-minimally coupled scalar fields
• A new approach on the stability analysis in ELKO cosmology
• Classical and quantum dynamics of confined test particles in brane gravity
• The growth of linear perturbations in the DGP model
• New agegraphic dark energy as a rolling tachyon
• Scalar field cosmology modified by the Generalized Uncertainty Principle
• Fractional Action Cosmology: Emergent, Logamediate, Intermediate, Power law Scenarios of the Universe and Generalized Second Law of Thermodynamics
• Constraining Modified Gravity with Euclid
• Vacuum Energy, the Cosmological Constant and Compact Extra Dimensions: Constraints from Casimir Effect Experiments
• Cosmic acceleration from modified gravity with Palatini formalism
• Exact Solutions in Chiral Cosmology
• Dynamical symmetries and observational constraints in scalar field cosmology
• Revisiting the parametrization of Equation of State of Dark Energy via SNIa Data
• Cosmic age problem revisited in the holographic dark energy model
• Constraints on Kinematic Model from Recent Cosmic Observations: SN Ia, BAO and Observational Hubble Data
• Age constraints on the cosmic equation of state
• Alleviating the cosmological constant problem from particle production
• Constraining extra dimensions using observations of black hole quasi-normal modes
• Thermodynamical aspects of running vacuum models
• Stability of de Sitter spacetime against infrared quantum scalar field fluctuations
• Will there be again a transition from acceleration to deceleration in course of the dark energy evolution of the universe?
• $f(R,T)=f(R)+\lambda T$ gravity models as alternatives to cosmic acceleration
• Composite Dark Energy and the Cosmological Tensions
• Constraints on growth index parameters from current and future observations
• Testing an exact $f(R)$-gravity model at Galactic and local scales
• Stringy Dark Energy Model with Cold Dark Matter
• Dynamical Mutation of Dark Energy
• Tests of Fundamental Quantum Mechanics and Dark Interactions with Low Energy Neutrons -- Extended Version
• Dynamically avoiding fine-tuning the cosmological constant: the "Relaxed Universe"
• Finite temperature effects in Bose-Einstein Condensed dark matter halos
• The cosmological constant and entropy problems: mysteries of the present with profound roots in the past
• Bayesian Evidences for Dark Energy models in light of current obsevational data
• Reconstruction Procedure in Nonlocal Cosmological Models
• Thermodynamics of apparent horizon in modified FRW universe with power-law corrected entropy
• Dilaton thin-shell wormholes supported by a generalized Chaplygin gas
• Tachyon cosmology, supernovae data and the Big Brake singularity
• Unified Dark Matter models with fast transition
• Effective equation of state for running vacuum: "mirage" quintessence and phantom dark energy
• Generalised Ellis-Bronnikov Wormholes in $f(R)$ Gravity
• Unimodular $f(R,T)$ Gravity
• The Cosmological Constant and Horava-Lifshitz Gravity
• Accelerating dark energy models with anisotropic fluid in Bianchi type-$V{I}_0$ space-time
• Model independent constraints on transition redshift
• Interacting new generalized Chaplygin gas
• Multiple Lambda cosmology: dark fluid with time-dependent equation of state as classical analog of cosmological landscape
• $\Lambda$CDM Bounce Cosmology without $\Lambda$CDM: the case of modified gravity
• Interacting modified Chaplygin gas in loop quantum cosmology
• Phantom-Like Behavior in $f(R)$-Gravity
• Unified Dark Fluid with Constant Adiabatic Sound Speed and Cosmic Constraints
• Stable and self consistent charged gravastar model within the framework of $f(R,T)$ gravity
• 3-loop Yang-Mills Condensate Dark Energy Model And Its Cosmological Constraints
• Brane assisted quintessential inflation with transient acceleration
• Dark energy generated from a (super)string effective action with higher order curvature corrections and a dynamical dilaton
• Cosmological implications and structure formation from a time varying vacuum
• Does the Big Rip survive quantization?
• Non-minimal kinetic coupling and the phenomenology of dark energy
• Reconstruction of Scalar Potentials in Modified Gravity Models
• The thawing dark energy dynamics: Can we detect it?
• Late time acceleration due to generic modification of gravity and Hubble tension
• Cosmological perturbations in the Tsallis holographic dark energy scenarios
• Reconstruction of Scalar Potentials in Induced Gravity and Cosmology
• Testing dynamical vacuum models with CMB power spectrum from Planck
• Measuring growth index in a universe with massive neutrinos: A revisit of the general relativity test with the latest observations
• Dynamics of coupled phantom and tachyon fields
• Stability of Anisotropic Stellar Filaments
• Reissner-Nordström Black Holes in Mimetic $F(R)$ Gravity
• Apparent horizon and gravitational thermodynamics of the Universe: Solutions to the temperature and entropy confusions, and extensions to modified gravity
• Thermodynamics of interacting entropy-corrected holographic dark energy in a non-flat FRW universe
• BAO signatures in the 2-point angular correlations and the Hubble tension
• Growth of matter perturbations in clustered holographic dark energy cosmologies
• Bianchi Type-I Cosmological Models with Variable G and 4Λ$-Terms in General Relativity
• Scaling solutions in scalar-tensor cosmologies
• Reconstructing K-essence
• Gauge-Dependent Cosmological "Constant"
• Constraints on Dirac-Born-Infeld type dark energy models from varying alpha
• Dynamic wormhole solutions in Einstein-Cartan gravity
• Generalized second law of thermodynamics in scalar-tensor gravity
• New Models of f(R) Theories of Gravity
• Role of Brans-Dicke Theory with or without self-interacting potential in cosmic acceleration
• Chemical Potential and the Nature of the Dark Energy: The case of phantom
• Are $H_0$ and ${\sigma }_8$ tensions generic to present cosmological data?
• Early and late time cosmology: the $f(R)$ gravity perspective
• Higher derivative corrections of $f(R)$ gravity with varying equation of state in the case of variable $G$ and $\Lambda$
• Narrowing Constraints with Type Ia Supernovae: Converging on a Cosmological Constant
• Reconstructing the dark energy potential
• Transition Redshift: New constraints from parametric and nonparametric methods
• The Integrated Sachs-Wolfe Effect in Interacting Dark Energy Models
• Superbounce and Loop Quantum Cosmology Ekpyrosis from Modified Gravity
• The generalized second law of gravitational thermodynamics on the apparent horizon in f(R)-gravity
• Reconstructing the interaction rate in holographic models of dark energy
• Some remarks about non-minimally coupled scalar field models
• Type I singularities and the Phantom Menace
• String inspired explanation for the super-acceleration of our universe
• Bulk Viscous LRS Biachi-I Universe with variable $G$ and decaying $\Lambda$
• Running vacuum in QFT in FLRW spacetime: The dynamics of ${\rho }_{\mathrm{vac}}(H)$ from the quantized matter fields
• Dipolar Dark Matter with Massive Bigravity
• Dynamics in Varying vacuum Finsler-Randers Cosmology
• Lorentz invariance and the zero-point stress-energy tensor
• Cosmic acceleration and crossing of $\omega =-1$ in non-minimal modified Gauss-Bonnet gravity
• $\gamma$ Parameter and Solar System constraint in Chameleon Brans Dick Theory
• Trapped Quintessential Inflation
• Decay of the de Sitter Vacuum
• Horndeski theories confront the Gravity Probe B experiment
• Fine Tuning Free Paradigm of Two Measures Theory: K-Essence, Absence of Initial Singularity of the Curvature and Inflation with Graceful Exit to Zero Cosmological Constant State
• Cosmic distance duality and cosmic transparency
• Torsion cosmological dynamics
• Scalar models for the generalized Chaplygin gas and the structure formation constraints
• Can Holographic dark energy models fit the observational data?
• Axionic dark energy and a composite QCD axion
• Brane Cosmological Evolution With Bulk Matter
• Relaxing a large cosmological constant
• A new perspective on the relation between dark energy perturbations and the late-time ISW effect
• Cosmological perturbations in an effective and genuinely phantom dark energy Universe
• The transient and the late time attractor tachyon dark energy: Can we distinguish it from quintessence ?
• Gauss-Bonnet Chameleon Mechanism of Dark Energy
• Cosmic Behavior, Statefinder Diagnostic and $w-w^{\prime }$ Analysis for Interacting NADE model in Non-flat Universe
• Statefinder Parameters for Interacting Phantom Energy with Dark Matter
• A note on perfect scalar fields
• DGP Cosmology with a Non-Minimally Coupled Scalar Field on the Brane
• A new perspective on Gravity and the dynamics of Spacetime
• Reconstruction of $f(Q,T)$ Lagrangian for various cosmological scenario
• The Homogeneous Scalar Field and the Wet Dark Sides of the Universe
• Dynamical Evolution of Interacting Modified Chaplygin Gas
• QCD ghost f(T)-gravity model
• A Generalized Interacting Tsallis Holographic Dark Energy Model and its thermodynamic implications
• Model selection and constraints from Holographic dark energy scenarios
• Composite dark energy: cosmon models with running cosmological term and gravitational coupling
• Probing the Universe on Gigaparsec Scales with Remote Cosmic Microwave Background Quadrupole Measurements
• Probing the time dependence of dark energy
• Spherically symmetric static vacuum solutions in hybrid metric-Palatini gravity
• Remarks on Dynamical Dark Energy Measured by the Conformal Age of the Universe
• Late-time constraints on modified Gauss-Bonnet cosmology
• Vacuum Energy: Myths and Reality
• Fitting Non-Minimally Coupled Scalar Models to Gold SnIa Dataset
• Quantum Relaxation of the Cosmological Constant
• Chameleon field and the late time acceleration of the universe
• Thin-Shell Gravastar Model in $f(Q,T)$ Gravity
• Comparison of Recent SnIa datasets
• Post-Newtonian parameters and cosmological constant of screened modified gravity
• Cosmic age, Statefinder and $Om$ diagnostics in the decaying vacuum cosmology
• Dynamics of a parametrized dark energy model in $f(R,T)$ gravity
• Cosmic evolution of dark energy in a generalized Rastall gravity
• Beyond Two Dark Energy Parameters
• Cosmological perturbations in SFT inspired non-local scalar field models
• Cosmic acceleration in brane cosmology
• Power-Law Entropy Corrected Ricci Dark Energy and Dynamics of Scalar Fields
• Dark energy from scalar field with Gauss Bonnet and non-minimal kinetic coupling
• Confronting the relaxation mechanism for a large cosmological constant with observations
• Dynamical instability of fluid spheres in the presence of a cosmological constant
• Constraining the curvature density parameter in cosmology
• Observational Constraints of Modified Chaplygin Gas in Loop Quantum Cosmology
• A FRW Dark Fluid with a Non-Linear Inhomogeneous Equation of State
• Dark energy and accelerating cosmological evolution from osculating Barthel-Kropina geometry
• Dynamic Scalar Torsion and an Oscillating Universe
• Cosmography, Decelerating Past, and Cosmological Models: Learning the Bayesian Way
• New Agegraphic Dark Energy in Brans-Dicke Theory
• Late-time cosmology in $f(Q,L_m)$ gravity: Analytical solutions and observational fits
• Bulk viscous matter and the cosmic acceleration of the universe in $f(Q,T)$ gravity
• Coupled quintessence and vacuum decay
• Can high-redshift Hubble diagrams rule out the standard model of cosmology in the context of cosmographic method?
• Holographic Dark Energy with Cosmological Constant
• Quantum field theory in de Sitter and quasi-de Sitter spacetimes: Revisited
• Tsallis holographic dark energy in Fractal Universe
• Cosmological Constant Problems and Renormalization Group
• Observational tests for Λ(t)CDM cosmology
• Cosmic Constraint to DGP Brane Model: Geometrical and Dynamical Perspectives
• The growth factor of matter perturbations in an f(R) gravity
• The w = -1 crossing of the quintom model with slowly-varying potentials
• De Sitter Stability and Coarse Graining
• Bright High z SnIa: A Challenge for LCDM?
• Excavating black hole continuum spectrum: Possible signatures of scalar hairs and of higher dimensions
• Revisiting the holographic dark energy in a non-flat universe: alternative model and cosmological parameter constraints
• Exploring the Latest Union2 SNIa Dataset by Using Model-Independent Parametrization Methods
• Cosmic Acceleration From Matter-Curvature Coupling
• Modified Chaplygin Traversable Wormholes
• Agegraphic dark energy: growth index and cosmological implications
• A unified description for dipoles of the fine-structure constant and SnIa Hubble diagram in Finslerian universe
• Viscous Dark Energy In Bianchi Type V Space-Time
• Big Rip and Little Rip solutions in scalar model with kinetic and Gauss Bonnet couplings
• Measuring the Chaplygin gas equation of state from angular and luminosity distances
• Backreaction of superhorizon scalar field fluctuations on a de Sitter geometry : a renormalisation group perspective
• Exploring holographic dark energy model with Sandage-Loeb test
• Constraining An Exact Brans-Dicke gravity theory with Recent Observations
• Constraining $f(Q,L_m)$ gravity with bulk viscosity
• The quantum realm of the "Little Sibling" of the Big Rip singularity
• Interior Solutions of Fluid Sphere in f(R,T) Gravity Admitting Conformal Killing Vectors
• Cosmographic view on the $H_0$ and ${\sigma }_8$ tensions
• An Accelerating Cosmological Model from a Parametrization of Hubble Parameter
• Jeans analysis in energy-momentum-squared gravity
• Unified model of baryonic matter and dark components
• Induced cosmological constant and other features of asymmetric brane embedding
• Reconstructing the Properties of Dark Energy using Standard Sirens
• Observational analysis of late-time acceleration in $f(Q,L_m)$ gravity
• Clustering, Angular Size and Dark Energy
• Thermodynamic constraints on a varying cosmological-constant-like term from the holographic equipartition law with a power-law corrected entropy
• Duality extended Chaplygin cosmologies with a big rip
• Supernova light-curve fitters and Dark Energy
• A transitioning universe with anisotropic dark energy
• Cosmological Constant from Decoherence
• New tracker models of dark energy
• Generalized LTB model with Inhomogeneous Isotropic Dark Energy: Observational Constraints
• Exotic Low Density Fermion States in the Two Measures Field Theory: Neutrino Dark Energy
• Crossing of $\omega =-1$ with Tachyon and Non-minimal Derivative Coupling
• The paradox of soft singularity crossing and its resolution by distributional cosmological quantitities
• Localization of nonlocal cosmological models with quadratic potentials in the case of double roots
• Cosmological evolution of Alpha driven by a general coupling with Quintessence
• Multiple kinetic k-essence, phantom barrier crossing and stability
• Accretion of Phantom Energy and Generalized Second Law of Thermodynamics for Einstein-Maxwell-Gauss-Bonnet Black Hole
• A Note on Schwarzschild de Sitter Black Holes in Mimetic $F(R)$ Gravity
• Dark Energy Fluid with Time-Dependent, Inhomogeneous Equation of State
• Exact solutions in bouncing cosmology
• Cosmography and cosmic acceleration
• Non-adiabatic perturbations in decaying vacuum cosmology
• Constraining $H_0$ from Sunyaev-Zel'dovich effect, Galaxy Clusters X-ray data, and Baryon Oscillations
• Testing for dynamical dark energy models with redshift-space distortions
• The solution of the cosmological constant problem from the inhomogeneous equation of state - a hint from modified gravity?
• Thermodynamic aspects of dark energy fluids
• Evolution of density perturbations in decaying vacuum cosmology: The case of non-zero perturbations in the cosmological term
• Statefinder diagnostic for modified Chaplygin gas cosmology in f(R,T) gravity with particle creation
• Polytropic dark matter flows illuminate dark energy and accelerated expansion
• Post-Newtonian Approximation of Teleparallel Gravity Coupled with a Scalar Field
• Modified Einstein and Finsler Like Theories on Tangent Lorentz Bundles
• Testing the DGP model with gravitational lensing statistics
• Magnetized Bianchi Type $V{I}_0$ Barotropic Massive String Universe with Decaying Vacuum Energy Density $\Lambda$
• Generalized thermodynamic constraints on holographic-principle-based cosmological scenarios
• Scale Factor Dependent Equations of State for Curvature Inspired Dark Energy, Phantom Barrier and Late Cosmic Acceleration
• Existence of black holes in Friedmann-Robertson-Walker universe dominated by dark energy
• Exploring interacting holographic dark energy in a perturbed universe with parameterized post-Friedmann approach
• Absence of the Fifth Force Problem in a Model with Spontaneously Broken Dilatation Symmetry
• Evolution of Dark Energy Perturbations in Scalar-Tensor Cosmologies
• Universal thermodynamics in different gravity theories: Modified entropy on the horizons
• Rotating and non-linear magnetic-charged black hole surrounded by quintessence
• Variable Cosmological Constant model: the reconstruction equations and constraints from current observational data
• Charged Perfect Fluid Cylindrical Gravitational Collapse
• Post-Planck Dark Energy Constraints
• Gravitationally induced particle production in scalar-tensor $f(R,T)$ gravity
• Chaotic scalar fields as models for dark energy
• A comprehensive numerical study on four categories of holographic dark energy models
• Non-parametric reconstruction of interaction in the cosmic dark sector
• Late time failure of Friedmann equation
• Direct evidence of acceleration from distance modulus redshift graph
• Dark energy reconstruction based on the PADE approximation; an expansion around the $\Lambda$CDM
• Effective growth of matter density fluctuations in the running LCDM and LXCDM models
• Inevitable manifestation of wiggles in the expansion of the late Universe
• Attractor behaviour of $f(T)$ modified gravity and the cosmic acceleration
• Wormhole on the Brane with Ordinary Matter: The Broader View
• Transition dynamics in the ${\Lambda }_{\mathrm{s}}$CDM model: Implications for bound cosmic structures
• The Einstein dark energy model
• Structure Formation in Generalized Rastall Gravity
• The Relaxed Universe: towards solving the cosmological constant problem dynamically from an effective action functional of gravity
• Holographic superconductors in quintessence AdS black hole
• Holographic, new agegraphic and ghost dark energy models in fractal cosmology
• Scalar modes in extended hybrid metric-Palatini gravity: weak field phenomenology
• Complementary Constraints on Brane Cosmology
• Analysis of scalar perturbations in cosmological models with a non-local scalar field
• Dilatonic Equation of Hydrostatic Equilibrium and Neutron Star Structure
• Galaxy Clustering and Dark Energy
• Recent advances in cosmological singularities
• Radial pulsations, moment of inertia and tidal deformability of dark energy stars
• Comparison between the Logotropic and $\Lambda$CDM models at the cosmological scale
• Cosmology with interaction in the dark sector
• Observational Constraints on Dark Energy Models with $\Lambda$ as an Equilibrium Point
• Agegraphic Chaplygin gas model of dark energy
• Cosmological constant and late transient acceleration of the universe in the Horava-Witten Heterotic M-Theory on S^{1}/Z_{2}
• Holographic self-tuning of the cosmological constant
• Background cosmological dynamics in $f(R)$ gravity and observational constraints
• Why Does Gravity Ignore the Vacuum Energy?
• Can the fluctuations of the quantum vacuum solve the cosmological constant problem?
• Self-similar scalar field collapse
• Filtering out the cosmological constant in the Palatini formalism of modified gravity
• Proof that Casimir force does not originate from vacuum energy
• Tracking Quintessence Would Require Two Cosmic Coincidences
• Will the tachyonic Universe survive the Big Brake?
• Reconstruction of interacting dark energy models from parameterizations
• Renormalization of 3d quantum gravity from matrix models
• Cosmographic analysis of a closed bouncing universe with the varying cosmological constant in $f(R,T)$ gravity
• Contraints on unified models for dark matter and dark energy using H(z)
• Three fluid cosmological model using Lie and Noether symmetries
• Constraints on Dark Energy Models from Galaxy Clusters with Multiple Arcs
• Do Observations Favour Galileon Over Quintessence?
• Data Analysis of three parameter models of deceleration parameter in FRW Universe
• Noether symmetric classical and quantum scalar field cosmology
• CMB Temperature and Matter Power Spectrum in a Decay Vacuum Dark Energy Model
• Dark Energy from Gauss-Bonnet and non-minimal couplings
• Dynamical analysis of interacting dark energy model in the framework of particle creation mechanism
• A Planck-scale axion and SU(2) Yang-Mills dynamics: Present acceleration and the fate of the photon
• Constraints on alternative models to dark energy
• Bulk viscous cosmological model in $f(R,T)$ theory of gravity
• Interacting Dark Energy in Hořava-Lifshitz Cosmology
• Assisted dark energy
• Growth of matter perturbations in the extended viscous dark energy models
• Evolution of spherical overdensities in holographic dark energy models
• L.R.S. Bianchi type II Stiff Fluid cosmological model with Decaying Vacuum Energy Density $\Lambda$ in general relativity
• Trapped Quintessential Inflation in the context of Flux Compactifications
• Increasing the Lensing Figure of Merit through Higher Order Convergence Moments
• Dark energy from bulk matter
• First study of reionization in the Planck 2015 normalized closed $\Lambda$CDM inflation model
• Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets
• Dark energy and cosmic curvature: Monte-Carlo Markov Chain approach
• Quasistationary solutions of self-gravitating scalar fields around collapsing stars
• Palatini wormholes and energy conditions from the prism of General Relativity
• Cosmological constant and vacuum energy
• Classical and quantum cosmology of Born-Infeld type models
• BAO cosmography
• Some remarks on the attractor behaviour in ELKO cosmology
• Solving the main cosmological puzzles with a generalized time varying vacuum energy
• Reconstructing a String-Inspired Non-minimally Coupled Quintom Model
• Tracking quintessence: a dynamical systems study
• Entanglement harvesting of three Unruh-DeWitt detectors
• Conservation laws and scattering for de Sitter classical particles
• Detecting the cosmic acceleration with current data
• Particle creation from the quantum stress tensor
• Holographic Dark Energy from a Modified GBIG Scenario
• Cosmological constant dominated transit universe from early deceleration to current acceleration phase in Bianchi-V space-time
• Vacuum energy: quantum hydrodynamics vs quantum gravity
• Homogeneous cosmologies in generalized modified gravity
• Constraining the dark energy statefinder hierarchy in a kinematic approach
• Power-law Parameterized Quintessence Model
• Clarifying Forecasts of Dark Energy Constraints from Baryon Acoustic Oscillations
• Effects of ghost dark energy perturbations on the evolution of spherical overdensities
• An Interacting model of Dark Energy in Brans-Dicke theory
• Variable Chaplygin Gas: Constraints from CMBR and SNe Ia
• J-PAS: forecasts on dark energy and modified gravity theories
• Interacting viscous ghost tachyon, K-essence and dilaton scalar field models of dark energy
• Accelerated expansion in modified gravity with a Yukawa-like term
• Exact solutions and cosmological constraints in fractional cosmology
• Observational Constraints with Recent Data on the DGP Modified Gravity
• Black Holes in Bulk Viscous Cosmology
• Dynamical systems study of Chameleon scalar field
• Dynamical system analysis of Quintom Dark Energy Model
• Anisotropic massive Brans-Dicke gravity extension of the standard $\Lambda$CDM model
• Conformally Coupled Tachyonic Dark Energy
• Observational Constraints on Dynamical Dark Energy Models
• A global fit study on the new agegraphic dark energy model
• Generalized Holographic Dark Energy and its Observational Constraints
• Crossing the Phantom Divide Line in a DGP-Inspired $F(R,\varphi )$-Gravity
• Cosmological Evolution of a Tachyon-Quintom Model of Dark Energy
• Cosmological perturbations in the interacting dark sector: Mapping fields and fluids
• Next generation design and prospects for CANNEX
• Is $\Lambda$CDM an effective CCDM cosmology?
• Dark Energy and Equation of State Oscillations with Collisional Matter Fluid in Exponential Modified Gravity
• Early and Late Transient Cosmic Acceleration due to Curvature Inspired Dark Energy
• Reconstruction of $f(R)$ gravity models for an accelerated universe using Raychaudhuri equation
• A late time accelerated FRW model with scalar and vector fields via Noether symmetry
• Sourcing Dark Matter and Dark Energy from $\alpha$-attractors
• Bayesian model selection on Scalar $\epsilon$-Field Dark Energy
• Will there be future deceleration? A study of particle creation mechanism in non-equilibrium thermodynamics
• Observational constraints on decaying vacuum dark energy model
• Cosmological dynamics of $f(R)$ gravity scalar degree of freedom in Einstein frame
• Scalar field collapse in a conformally flat spacetime
• Holographic dark energy and late cosmic acceleration
• Fractional Holographic Dark Energy
• Stability of Thin-Shell Wormholes from Noncommutative BTZ Black Hole
• New general parametrization of quintessence fields and its observational constraints
• Does fractal Universe describe a complete cosmic scenario?
• Macroscopic quantum tunneling: from quantum vortices to black holes and Universe
• Cosmological Evolution Across Phantom Crossing and the Nature of the Horizon
• Holographic dark energy: constraints on the interaction from diverse observational data sets
• Physical constraints on interacting dark energy models
• Bayesian comparison of nonstandard cosmologies using type Ia supernovae and BAO data
• Oxidised cosmic acceleration
• Testing generalized logotropic models with cosmic growth
• Dark energy models toward observational tests and data
• Quantization of Gravitational System and its Cosmological Consequences
• Cosmological Constant, Fine Structure Constant and Beyond
• New holographic dark energy model with non-linear interaction
• Growth Index after the Planck Results
• Understanding the origin of CMB constraints on Dark Energy
• Does $\Lambda$CDM really be in tension with the Hubble diagram data?
• Accelerating universes driven by bulk particles
• A Note on the Viability of Gauss-Bonnet Cosmology
• Strong gravitational lensing constraints on holographic dark energy
• Two-Fluid Dark Energy Models in Bianchi Type-III Universe with Variable Deceleration Parameter
• Gauge invariant perturbations of Scalar-Tensor Cosmologies: The vacuum case
• On An Interacting New Holographic Dark Energy Model: observational constraints
• Cosmic microwave background constraints on dark energy dynamics: analysis beyond the power spectrum
• Cosmic microwave background and large-scale structure constraints on a simple quintessential inflation model
• Perturbations in a scalar field model with virtues of $\Lambda$CDM
• Growth of structure in interacting vacuum cosmologies
• Spherical collapse model and cluster number counts in power law $f(T)$ gravity
• Statefinder diagnostic for cosmology with the abnormally weighting energy hypothesis
• The intrinsic curvature of thermodynamic potentials for black holes with critical points
• A comparison of perturbations in fluid and scalar field models of dark energy
• Interacting entropy-corrected new agegraphic dark energy in non-flat universe
• The phase-space of generalized Gauss-Bonnet dark energy
• The present universe in the Einstein frame, metric-affine R+1/R gravity
• Thermodynamics of Schwarzschild black hole surrounded by quintessence in gravity's rainbow
• Vacuum Energy and Renormalization on the Edge
• Constraining the dark energy dynamics with the cosmic microwave background bispectrum
• Asymptotically Lifshitz black hole solutions in F(R) gravity
• Growth of spherical overdensities in scalar-tensor cosmologies
• Reconstruction of scalar potentials in two-field cosmological models
• General treatment for dark energy thermodynamics
• Cosmological perturbation of Unimodular Gravity and General Relativity are identical
• Notes on interacting holographic dark energy model in a closed universe
• Second-order matter density perturbations and skewness in scalar-tensor modified gravity models
• Probing Cosmic Acceleration by Using the SNLS3 SNIa Dataset
• The generalized second law for the interacting generalized Chaplygin gas model
• A conventional approach to the dark-energy concept
• Thermodynamic Phase Transition and global stability of the Regular Hayward Black hole Surrounded by Quintessence
• Anisotropic singularities in modified gravity models
• Dynamical Systems Analysis of K-essence Model
• A late time acceleration of the universe with two scalar fields : many possibilities
• Crossing of Phantom Divide in $F(R)$ Gravity
• Cosmography and large scale structure by f(R) gravity: new results
• Neutron stars in Einstein-$\Lambda$ gravity: the cosmological constant effects
• First-order formalism for dark energy and dust
• Limits on decaying dark energy density models from the CMB temperature-redshift relation
• Dynamics and constraints of the Unified Dark Matter flat cosmologies
• Comparing holographic dark energy models with statefinder
• A new extended quintessence
• Astrophysical Signatures of Black holes in Generalized Proca Theories
• Spherical collapse in the extended quintessence cosmological models
• Coincidence Problem in $f(R)$ Gravity Models
• Cosmological dark energy effects from entanglement
• Cosmological models with Yang-Mills fields
• Cosmology with variable parameters and effective equation of state for Dark Energy
• An interacting New Holographic Dark Energy in the framework of fractal cosmology
• Stable Charged Gravastar model in Cylindrically Symmetric Space-time
• Vacuum Energy as the Origin of the Gravitational Constant
• Remarks on the general solution for the flat Friedman universe with exponential scalar-field potential and dust
• Scalar-multi-tensorial equivalence for higher order $f\left(R,{\nabla }_{\mu }R,{\nabla }_{{\mu }_1}{\nabla }_{{\mu }_2}R,...,{\nabla }_{{\mu }_1}...{\nabla }_{{\mu }_n}R\right)$ theories of gravity
• Dark Energy: The Shadowy Reflection of Dark Matter?
• Scrutinizing Various Phenomenological Interactions In The Context Of Holographic Ricci Dark Energy Models
• Reinventing spacetime on a dynamical hypersurface
• New Constraints on the Variable Equation of State Parameter from X-Ray Gas Mass Fractions and SNe Ia
• Brane Cosmology with a Non-Minimally Coupled Bulk-Scalar Field
• Observational Constraints in Nonlocal Gravity: the Deser-Woodard Case
• Cosmological implications of the transition from the false vacuum to the true vacuum state
• Cosmological singularities and analytical solutions in varying vacuum cosmologies
• Could pressureless dark matter have pressure?
• Cosmological anisotropy from non-comoving dark matter and dark energy
• Modified gravity inspired DGP brane cosmology
• Cosmological Symmetry Breaking, Pseudo-scale invariance, Dark Energy and the Standard Model
• Tsallis holographic model of dark energy: Cosmic behaviour, statefinder analysis and ${\omega }_D-{\omega }_D^{\prime }$ pair in the non-flat universe
• Classical and quantum Big Brake cosmology for scalar field and tachyonic models
• Constraints on anisotropic properties of the universe in $f(Q,T)$ gravity theory
• Running vacuum in Brans-Dicke theory: a possible cure for the ${\sigma }_8$ and $H_0$ tensions
• Constraints on Dark Energy and Modified Gravity models by the Cosmological Redshift Drift test
• Reconsidering a higher-spin-field solution to the main cosmological constant problem
• Crossing the phantom divide line as an effect of quantum transitions
• A fluid os strings as a viable candidate to the dark side of the universe
• Role of Modified Chaplygin Gas as a Dark Energy Model in Collapsing Spherically Symmetric Cloud
• Brane-Bulk energy exchange and agegraphic dark energy
• Dynamical systems analysis of phantom models
• $\beta$-exponential inflation
• Reconstruction of interaction rate in Holographic dark energy
• Cosmological dynamics of interacting dark energy and dark matter in viable models of f(R) gravity
• Searching for systematics in SNIa and galaxy cluster data using the cosmic duality relation
• Constraining the dark energy and smoothness-parameter with supernovae
• A solution of the dark energy and its coincidence problem based on local antigravity sources without fine-tuning or new scales
• Dark energy interacting with dark matter and unparticle
• Networks of cosmological histories, crossing of the phantom divide line and potentials with cusps
• Higgs potential from extended Brans-Dicke theory and the time-evolution of the fundamental constants
• Exponential Cardassian Universe
• Dark Energy and Dark Matter in General Relativity with local scale invariance
• Exploring Universe acceleration through observational constraints via Hubble parameter reconstruction
• Cosmology With Non-Minimally Coupled K-Field
• Brans-Dicke Cosmology in 4D from scalar-vacuum in 5D
• de Sitter group and Einstein-Hilbert Lagrangian
• Non-minimal kinetic coupling and Chaplygin gas cosmology
• Cosmological evolution of interacting dark energy in Lorentz violation
• Measuring the Hubble Constant with cosmic chronometers: a machine learning approach
• Heteroclinic orbit and tracking attractor in cosmological model with a double exponential potential
• A new pressure-parametrization unified dark fluid model
• Observational constraints on the oscillating dark energy cosmologies
• Brans-Dicke Theory and Thermodynamical Laws on Apparent and Event Horizons
• Acceleration of the Universe in f(R) Gravity Models
• Corrected holographic dark energy with power-law entropy and Hubble Horizon cut-off in FRW Universe
• Best values of parameters for interacting HDE with GO IR-cutoff in Brans-Dicke cosmology
• Quantum mechanical look at the radioactive-like decay of metastable dark energy
• Local Gravity Constraints and Power Law f(R) Theories
• On the covariant formalism of the effective field theory of gravity and its cosmological implications
• A comprehensive parametrization approach for the Hubble parameter in scalar field dark energy models
• Consistency of LCDM with Geometric and Dynamical Probes
• A Singular Conformal Spacetime
• Inverse problem: Reconstruction of modified gravity action in Palatini formalism by Supernova Type Ia data
• Black Hole Formation with an Interacting Vacuum Energy Density
• Tomography from the Next Generation of Cosmic Shear Experiments for Viable f(R) Models
• Constraints on the Cardassian Expansion from the Cosmic Lens All-Sky Survey Gravitational Lens Statistics
• Planck-PR4 anisotropy spectra show (better) consistency with General Relativity
• Study of Tsallis holographic dark energy model in the framework of Fractal cosmology
• Inflessence: a phenomenological model for inflationary quintessence
• Partial rip scenario - a cosmology with a growing cosmological term
• Accretion of nonminimally coupled scalar fields into black holes
• Accelerating anisotropic cosmologies in Brans-Dicke gravity coupled to a mass-varying vector field
• Euler-Heisenberg black hole surrounded by quintessence in the background of perfect fluid dark matter: Thermodynamics, Shadows and Quasinormal modes
• Non-Local Curvature Gravity Cosmology via Noether Symmetries
• Dynamical System Analysis for a phantom model
• Self-interacting holographic dark energy
• Some Homogeneous Bianchi Type IX Viscous Fluid Cosmological Models with a varying $\Lambda$
• Cosmological Constant Problem and Renormalized Vacuum Energy Density in Curved Background
• Polytropic and Chaplygin f(R)-gravity models
• A New Variable Modified Chaplygin Gas Model Interacting with Scalar Field
• Generalised scalar-tensor theory and the cosmic acceleration
• Reconstruction of $f(R,T)$ gravity model via the Raychaudhuri equation
• $f(R)$ quantum cosmology: avoiding the Big Rip
• Inflation and Quintessence: Theoretical Approach of Cosmological Reconstruction
• Geometrical Origin of the Cosmological Constant
• Analytic solutions of the geodesic equation for Reissner-Nordström-(anti-)de Sitter black holes surrounded by different kinds of regular and exotic matter fields
• Casimir Energy in Deconstruction and the Cosmological Constant
• Exact and slow-roll solutions for exponential power-law inflation connected with f(R) gravity and observational constraints
• Cosmography of interacting generalized QCD ghost dark energy
• Spinor model of a perfect fluid and their applications in Bianchi type-I and FRW models
• Extended $\Lambda$CDM model and viscous dark energy: A Bayesian analysis
• Loop Quantum Cosmology Matter Bounce Reconstruction from $F(R)$ Gravity Using an Auxiliary Field
• The Vacuum Energy Density and Gravitational Entropy
• Quantum cosmology of the multi-field scalar matter: some exact solutions
• A study of phantom scalar field cosmology using Lie and Noether symmetries
• Chaplygin gas may prevent big trip
• On Cosmological Implications of Gravitational Trace Anomaly
• Brans-Dicke gravity: from Higgs physics to (dynamical) dark energy
• Observational Constraints on a Variable Dark Energy Model
• Massive cosmic strings in Bianchi type II
• Gauss-Bonnet brane gravity with a confining potential
• On Energy Conditions and Stability in Effective Loop Quantum Cosmology
• Brane Inflation, Solitons and Cosmological Solutions: I
• Constraints on decaying early modified gravity from cosmological observations
• Dark energy from cosmological fluids obeying a Shan-Chen non-ideal equation of state
• Symmetry breaking and the onset of cosmic acceleration in scalar field models
• Spherical collapse model in agegraphic dark energy cosmologies
• Dynamics and chaos in the unified scalar field Cosmology
• Dynamics of Quintessential Inflation
• The Kiselev solution in power-Maxwell electrodynamics
• Artificial Dynamical Effects in Quantum Field Theory
• Background Independent Field Quantization with Sequences of Gravity-Coupled Approximants II: Metric Fluctuations
• Cosmological Scaling Solutions for Multiple Scalar Fields
• GCG Parametrization for Growth Function and Current Constraints
• Vacuum energy and spectral function sum rules
• Reconstructing the properties of dark energy from recent observations
• An Embedding for General Relativity and its Implications for New Physics
• Transverse Wave Propagation in Relativistic Two-fluid Plasmas around Schwarzschild-de Sitter Black Hole
• Formation of caustics in Dirac-Born-Infeld type scalar field systems
• The generalized second law of thermodynamics for interacting $f(R)$ gravity
• $2.6M_{\odot }$ Compact Object and Neutron Stars within Eddington-Inspired Born-Infeld Theory of Gravity
• Using newest VLT-KMOS HII Galaxies and other cosmic tracers to test the $\Lambda$CDM tension
• Charged gravastar model in Rastall theory of gravity
• Observational constraints on the interacting dark energy - dark matter (IDM) cosmological models
• Shadows of magnetically charged rotating black holes surrounded by quintessence
• Unified $f(R)$ gravity at local scales
• Exploring the new Tsallis agegraphic dark energy with interaction through statefinder
• Modified gravity with an exponential function of curvature
• Viability of the $R+e^T$ cosmology
• The arbitrariness of potentials in interacting quintessence models
• Limits on the Reconstruction of a Single Dark Energy Scalar Field Potential from SNe Ia Data
• Discrimination between Lambda-CDM, quintessence, and modified gravity models using wide area surveys
• Late time cosmological scenarios from scalar field with Gauss Bonnet and non-minimal kinetic couplings
• Constraints from the CMB temperature and other common observational data-sets on variable dark energy density models
• Perturbations in the relaxation mechanism for a large cosmological constant
• Statefinder diagnostic in a torsion cosmology
• Gravitational collapse due to dark matter and dark energy in the brane world scenario
• Phantom universe from CPT symmetric QFT
• Dark energy, curvature, and cosmic coincidence
• Probing Dark Energy with Supernovae : Bias from the time evolution of the equation of state
• COBE-DMR-Normalized Dark Energy Cosmogony
• Constraining Thawing Quintessence
• Moment of inertia and compactness of quark stars within the context of $f(R,T,L_m)$ gravity
• Gravitational atoms in the braneworld scenario
• Diagnostic and Comparative Analysis of Dark Energy Models with $q(z)$ Parametrizations
• The dynamical behavior of the Extended Holographic Dark Energy with Hubble Horizon
• Cosmological constraints on the new holographic dark energy model with action principle
• From model dynamics to oscillating dark energy parameterisation
• Thermodynamics and decay of de Sitter vacuum
• Deformed special relativity with an invariant minimum speed and its cosmological implications
• On the effect of the degeneracy between w_0 and w_a
• CCDM model from quantum particle creation: constraints on dark matter mass
• Time-Varying Dark Energy Constraints From the Latest SN Ia, BAO and SGL
• Reconstruction of late-time cosmology using Principal Component Analysis
• QCD modified ghost scalar field dark energy models
• Chameleon Cosmology Model Describing the Phantom Divide Line Crossing
• Growth of perturbations in dark energy parametrization scenarios
• An explanation for the tiny value of the cosmological constant and the low vacuum energy density
• Kaluza-Klein Type Robertson Walker Cosmological Model With Dynamical Cosmological Term $\Lambda$
• Bianchi II with time varying constants. Self-similar approach
• The post-Minkowskian limit of f(R)-gravity
• Deviation from $\Lambda$CDM: Pressure Parametrization
• Reconstructing Cosmological Matter Perturbations using Standard Candles and Rulers
• A cosmological scenario from the Starobinsky model within the $f(R,T)$ formalism
• The Cosmological Constant as an Eigenvalue of a Sturm-Liouville Problem and its Renormalization
• Entropy In The Present And Early Universe: New Small Parameters And Dark Energy Problem
• Geodesics of McVittie Spacetime with a Phantom Cosmological Background
• Observational bounds on extended minimal theories of massive gravity: New limits on the graviton mass
• Addressing Cosmological Tensions by Non-Local Gravity
• Gradient expansion(s) and dark energy
• Cosmic Acceleration in Brans-Dicke Cosmology
• Roles of Modified Chaplygin-Jacobi and Chaplygin-Abel Gases in FRW Universe
• Differentiating dark interactions with perturbation
• Bouncing Universe with Non-minimally Coupled Quintom Matter
• DGP and DGPish cosmologies from $f(Q)$ actions
• LRS Bianchi type-I bulk viscous cosmological models in $f(R,T)$ gravity
• Dynamics and Constraints of the Massive Gravitons Dark Matter Flat Cosmologies
• A critical assessment of some inhomogeneous pressure Stephani models
• Kaluza-Klein Cosmology with Varying G and $\Lambda$
• Evolution of perturbations in distinct classes of canonical scalar field models of dark energy
• Neutrino Dark Energy and Moduli Stabilization in a BPS Braneworld Scenario
• On Bianchi type III Cosmological Model with Quadratic EoS in Lyra Geometry
• Uncertainty on determining the dark energy equation of state due to the spatial curvature
• Vector dark energy models with quadratic terms in the Maxwell tensor derivatives
• Thermodynamical Behaviour of Inhomogeneous Universe with Varying $\Lambda$ in Presence of Electromagnetic Field
• $\Lambda$CDM model with a scalar perturbation vs. preferred direction of the universe
• Equation of State of Neutron Stars with Junction Conditions in the Starobinsky Model
• Constraints to Holographic Dark Energy Model via Type Ia Supernovae, Baryon Acoustic Oscillation and WMAP
• Light deflection angle through velocity profile of galaxies in $f(R)$ model
• Exploring the Outer Solar System with the ESSENCE Supernova Survey
• Cyclic Magnetic Universe
• Scalar field cosmological models with finite scale factor singularities
• Statefinder Parameters for Five-Dimensional Cosmology
• Phase-space analysis of dark energy models in non-minimally coupled theories of gravity
• Qualitative study of perfect-fluid Friedmann-Lema\^ıtre-Robertson-Walker models with a cosmological constant
• Cosmological Implications of a Scale Invariant Standard Model
• An analytic model for the transition from decelerated to accelerated cosmic expansion
• A Possible Solution of the Cosmological Constant Problem based on Minimal Length Uncertainty and GW170817 and PLANCK Observations
• Transient acceleration from a hybrid Chaplygin gas
• Structure formation in dark energy cosmologies described by PADE parameterization
• Thawing Versus. Tracker Behaviour: Observational Evidence
• Scalar perturbations in the late Universe: viability of the Chaplygin gas models
• Gravothermal Catastrophe with a Cosmological Constant
• An interacting model for the cosmological dark sector
• Vacuum Solution of a Linear Red-Shift Based Correction in $f(R)$ Gravity
• Exact cosmological solutions of models with an interacting dark sector
• Late-time acceleration in Higher Dimensional Cosmology
• Normal oscillation modes and radial stability of neutron stars with a dark-energy core from the Chaplygin gas
• Cubic Derivative Interactions and Asymptotic Dynamics of the Galileon Vacuum
• Statefinder Parameters for Different Dark Energy Models with Variable G Correction in Kaluza-Klein Cosmology
• Dynamics and constraints of the dissipative Liouville cosmology
• Inhomogeneous Bulk Viscous Fluid Universe with Electromagnetic Field and Variable $\Lambda$-Term
• Density perturbation in an interacting holographic dark energy model
• Dependence on supernovae light-curve processing in void models
• The complementarity of the redshift drift
• De-Sitter nonlinear sigma model and accelerating universe
• Sub-Quantum Dark Energy
• Coupling dark energy with Standard Model states
• Statefinder parameters for quantum effective Yang-Mills condensate dark energy model
• Constraints on the Cosmological Constant due to Scale Invariance
• Statefinder Diagnostic for Quintessence with or without Thermal Interaction
• Linear perturbations in viable f(R) theories
• The generalized second law for the interacting new agegraphic dark energy in a non-flat FRW universe enclosed by the apparent horizon
• Linear and non-linear perturbations in dark energy models
• Testing the cosmic conservation of photon number with type Ia supernovae and ages of old objects
• Is Thick Brane Model Consistent with the Recent Observations?
• A New Look at the Quantum Mechanics of the Harmonic Oscillator
• Late time cosmic acceleration from vacuum Brans-Dicke theory in 5D
• Black holes in multi-fractional and Lorentz-violating models
• Black Hole entropy for two higher derivative theories of gravity
• Comparing dark energy models with current observational data
• Perspectives on constraining a cosmological constant-type parameter with pulsar timing in the Galactic Center
• Chameleon Field Dynamics During Inflation
• Embedding of FRW Cosmology in DGP Scenario with a Non-Minimally Coupled Scalar Field on the Brane
• FLRW-Cosmology in Generic Gravity Theories
• Variable G and $\Lambda$: scalar-tensor versus RG-improved cosmology
• Cosmological constant and gravitational theory on D-brane
• Structure formation in $f(R)$ gravity: A distinguishing probe between the dark energy and modified gravity
• New parameterization for unified dark matter and dark energy
• Classifying the Future of Universes with Dark Energy
• Global monopole surrounded by quintessence-like matter
• Scalar Field Collapse with an exponential potential
• Coupled quintessence with a possible transient accelerating phase
• Interacting Viscous Dark Energy in Bianchi Type-I Universe
• A Dark Energy Model in Lyra Manifold
• Curvature corrections in DGP brane cosmology
• Jacobi stability analysis of scalar field models with minimal coupling to gravity in a cosmological background
• Gravitational Collapse in Higher Dimensional Husain Space-Time
• An estimate of the dark matter density from galaxy clusters and supernovae data
• Topological Quintessence
• Cosmological dynamics of magnetic Bianchi I in viable $f(R)$ models of gravity
• Cosmological Tests of $f(R,G,T)$ Dark Energy Model in FRW Universe
• Scalar Field Theory Description of the Running Vacuum Model: the Vacuumon
• Hybrid dark energy
• Instability of De Sitter Spacetime induced by Quantum Conformal Anomaly
• Cross-correlation between the cosmic microwave and infrared backgrounds for integrated Sachs-Wolfe detection
• Phantom Behavior Bounce with Tachyon and Non-minimal Derivative Coupling
• One-loop effective potential from higher-dimensional AdS black holes
• Number Counts and Dynamical Vacuum Cosmologies
• Spontaneous symmetry breaking in the late Universe and glimpses of early Universe phase transitions à la baryogenesis
• A minimal set of invariants as a systematic approach to higher order gravity models
• Constraints on Dark Energy Models Using Late Universe Probes
• Singularity formation in asymptotically safe cosmology with inhomogeneous equation of state
• Finslerian perturbation for the $\Lambda$CDM model
• Singular Accelerated Evolution in Massive $F(R)$ Bigravity
• Inhomogeneous models of interacting dark matter and dark energy
• Dark energy from Geometrothermodynamics
• Two 3-Branes in Randall-Sundrum Setup and Current Acceleration of the Universe
• Validity of Generalized Second Law of Thermodynamics in the Logamediate and Intermediate scenarios of the Universe
• Stellar Structure Equations in Extended Palatini Gravity
• Interacting Quintessence in a New Scalar-Torsion Gravity
• Running Vacuum Cosmological Models: Linear Scalar Perturbations
• Nonlinear effects of dark energy clustering beyond the acoustic scales
• The cosmological constant as an eigenvalue of the Hamiltonian constraint in Horava-Lifshits theory
• A dynamical systems study of the inhomogeneous Lambda-CDM model
• Higher Dimensional Dust Cosmological Implications of a Decay Law for $\Lambda$ Term : Expressions for Some Observable Quantities
• Acceleration of the Universe driven by the Casimir force
• Stable Large-Scale Perturbations in Interacting Dark-Energy Model
• Phantom Accretion by Black Holes and the Generalized Second Law of Thermodynamics
• Relic gravitational waves and the generalized second law
• On finite time singularities in scalar field dark energy models based in the RS-II Braneworld
• Dynamical age of the universe as a constraint on the parametrization of dark energy equation of state
• Thermodynamics of Modified Chaplygin Gas and Tachyonic Field
• Quintom fields from chiral K-essence cosmology
• Exploring departures from Schwarzschild black hole in $f(R)$ gravity
• Constraining thawing and freezing models with cluster number counts
• Constraining dark energy using the cross correlations of weak lensing with post-reionization probes of neutral hydrogen
• Some properties of the "String gas" with the equation of state $p=-\rho /3$
• On the Hojman conservation quantities in Cosmology
• Global properties of the growth index of matter inhomogeneities in the universe
• Dynamical systems analysis of the cubic galileon beyond the exponential potential and the cosmological analogue of the vDVZ discontinuity
• Rapid Oscillatory quintessence with variable equation of state parameter in non minimal derivative coupling model
• Current lookback time-redshift bounds on dark energy
• Interacting Scalar fields: Dark matter and early dark energy
• Thermodynamics in the universe described by the emergence of the space and the energy balance relation
• Solar System Constraints on Scalar Tensor Theories with Non-Standard Action
• BRST Quantization of Unimodular Gravity
• Scalar field dark energy perturbations and the Integrated Sachs Wolfe effect
• Constructions of $f(R,G,\mathcal{T})$ Gravity from Some Expansions of the Universe
• Reconstruction of cosmological matter perturbations in Modified Gravity
• Universal thermodynamics in different gravity theories: Conditions for generalized second law of thermodynamics and thermodynamical equilibrium on the horizons
• The Integrated Sachs-Wolfe Effect in 4D Einstein-Gauss-Bonnet Gravity
• Imprint of thawing scalar fields on large scale galaxy overdensity
• Cosmological zoo -- accelerating models with dark energy
• The fine tuning of the cosmological constant in a conformal model
• Power-law solutions and accelerated expansion in scalar-tensor theories
• Interaction between scalar field and ideal fluid with inhomogeneous equation of state
• Cosmography with the Sunyaev-Zeldovich effect and X-ray data
• Solar System Constraints on a Cosmologically Viable $f(R)$ Theory
• Evolution of Spherical Overdensities in Energy-Momentum-Squared Gravity
• It's a dark, dark world: Background evolution of interacting $\varphi$CDM models beyond simple exponential potentials
• Quantum Haplodynamics, Dark Matter and Dark Energy
• Observational constraints on the braneworld model with brane-bulk energy exchange
• A Reconstruction of Quintessence Dark Energy
• Cosmological Scaling Solutions with Tachyon:Modified Gravity Model
• A Study of Universal Thermodynamics in Brane World Scenario
• Power-Law and Logarithmic Entropy-Corrected Ricci Viscous Dark Energy and Dynamics of Scalar Fields
• Simplified Quartessence Cosmology
• Acceleration field of a Universe modeled as a mixture of scalar and matter fields
• Slow rolling, inflation and quintessence
• Using Noether symmetries to specify f(R) gravity
• Statefinder diagnostic of logarithmic entropy corrected holographic dark energy with Granda-Oliveros IR cut-off
• Cosmological dynamics of scalar fields with O(N) symmetry
• Causality Problem in a Holographic Dark Energy Model
• Cosmic acceleration from coupling of baryonic and dark matter components: Analysis and diagnostics
• Deviation From ΛCDM With Cosmic Strings Networks
• Evolution of shifted cosmological parameter and shifted dust matter in a two-phase tachyonic field universe
• Vacuum energy and the cosmological constant problem in $\kappa$-Poincaré invariant field theories
• Neutrino generated dynamical dark energy with no dark energy field
• Bounds from ISW-galaxy cross-correlations on generalized covariant Galileon models
• Light mass galileon and late time acceleration of the Universe
• Low-energy modified gravity signatures on the large-scale structures
• Thawing and Freezing Quintessence Models: A thermodynamic Consideration
• Quintom cosmological model and some possible solutions using Lie and Noether symmetries
• Dynamical quintessence fields Press-Schechter mass function: detectability and effect on dark haloes
• Comparing teh holographic principle inspired dark energy models
• Simple model of big-crunch/big-bang transition
• The Reconstruction of Constant Jerk Parameter with $f(R,T)$ Gravity in Bianchi-I spacetime
• Testing the growth rate in homogeneous and inhomogeneous interacting vacuum models
• Probing the time variation of fine structure constant using galaxy clusters and quintessence model
• Density perturbations in decaying holographic dark energy models
• Holographic Dark Energy Interacting with Two Fluids and Validity of Generalized Second Law of Thermodynamics
• Equivalence Principle (EP) and Solar System Constraints on $R(1\pm \epsilon \ln (\frac{R}{R_c}))$ model of Gravity
• Reconstructing the interaction between the dark matter and holographic dark energy
• Type V singularities in non-standard cosmological backgrounds
• The interaction of neutrinos with Phantom, Quintessence, and Quintum scalar fields and its effect on the formation of structures in the early Universe
• Evolution of Spherical Overdensity in Thawing Dark energy Models
• Tsallis holographic dark energy with power law ansatz approach
• Direct tests of General Relativity under screening effect with galaxy-scale strong lensing systems
• Black Hole Solutions and Pressure Terms in Induced Gravity with Higgs Potential
• DBI Galileon and Late time acceleration of the universe
• Emulating $\Lambda$CDM-like expansion on the Phantom brane
• Global properties of the growth index: mathematical aspects and physical relevance
• Phantom without phantom or how the PT symmetry saves us from the Big Rip
• Multi-scalar field cosmology from SFT: an exactly solvable approximation
• Observational constraints on interactions between dark energy and dark matter with momentum and energy transfers
• One-parameter dynamical dark-energy from the generalized Chaplygin gas
• Black hole solutions of gravity theories with nonminimal coupling between matter and curvature
• Cosmological Constraint and Analysis on Holographic Dark Energy Model Characterized by the Conformal-age-like Length
• Maxwell extension of $f(R)$ gravity
• Cosmological models of generalized ghost pilgrim dark energy (GGPDE) in the gravitation theory of Saez-Ballester
• Holographic Dark Energy and Quantum Entanglement
• Non-minimally coupled quintessence DE model with a cubic galileon term --A Dynamical System Analysis
• Interacting Ricci Logarithmic Entropy Corrected Holographic Dark Energy in Brans-Dicke Cosmology
• The current status of observational cosmology
• The evolution of the universe from noncompact Kaluza-Klein theory
• Hubble-rate-dependent Dark Energy in Brans-Dicke Cosmology
• Cosmologies with variable parameters and dynamical cosmon: implications on the cosmic coincidence problem
• Statefinder Diagnostic for Phantom Model with $V(\varphi )=V_0\exp (-\lambda {\varphi }^2)$
• Thawing in a coupled quintessence model
• Non-existence of Extended Holographic Dark Energy with Hubble Horizon
• Cosmology With Axionic-quintessence Coupled with Dark Matter
• Decoherence Can Relax Cosmic Acceleration: an Example
• Relaxing a large cosmological constant in the astrophysical domain
• Quantum cosmology for non-minimally coupled scalar field in FLRW space-time: A symmetry analysis
• Halting eternal acceleration with an effective negative cosmological constant
• Cosmographic analysis of sign-switching dark energy
• Post-reionization HI 21-cm signal: A probe of negative cosmological constant
• First cosmological constraints on the Superfluid Chaplygin gas model
• Cosmological constraints on Agegraphic dark energy in DGP braneworld gravity
• Gravitational Coupling and Dynamical Reduction of The Cosmological Constant
• New Tsallis Agegraphic Dark Energy
• Decaying dark energy in light of the latest cosmological dataset
• Warm inflation with non-comoving scalar field and radiation fluid
• Energy stored on a cosmological horizon and its thermodynamic fluctuations in holographic equipartition law
• Perturbative Instability of Cosmology from Quantum Potential
• Cosmological dynamics of a non-minimally coupled bulk scalar field in DGP setup
• Irreversible thermodynamics of dark energy on entropy-corrected apparent horizon
• Observational Constraints on Axions as Quintessence in String Theory
• Particle creation in the framework of f(G) gravity
• Scalar-field Pressure in Induced Gravity with Higgs Potential and Dark Matter
• The cosmological constant in the brane world of string theory on $S^1/Z_2$
• Probing nonstandard neutrino cosmology with terrestrial neutrino experiments
• Interacting viscous entropy-corrected holographic scalar field models of dark energy with time-varying G in modified FRW cosmology
• Quantum Yang--Mills Dark Energy
• Viscous extended holographic Ricci dark energy in the framework of standard Eckart theory
• Fundamental constants and their variability in theories of High Energy Physics
• First-order formalism for the quintom model of dark energy
• Quantum properties of fermionic fields in multi-event horizon spacetime
• Data-driven and Almost Model-independent Reconstruction of Modified Gravity
• Accelerated expansion from braneworld models with variable vacuum energy
• Prospects of probing quintessence with HI 21-cm intensity mapping survey
• Observational Constraints on Varying Alpha in $\Lambda (\alpha )$CDM Cosmology
• Cosmic expansion driven by real scalar field for different forms of potential
• Wave dynamics of phantom scalar perturbation in the background of Schwarzschild black hole
• Bulk viscous cosmological model with interacting dark fluids
• Higher dimensional cosmological model with a phantom field
• Schwarzschild black hole surrounded by quintessential matter field as an accelerator for spinning particles
• On the holographic dark energy in chameleon scalar-tensor cosmology
• Unified dark matter and dark energy description in a chiral cosmological model
• Reconstructing $f(T)$ modified gravity from ECHDE and ECNADE models
• Revisit of constraints on dark energy with Hubble parameter measurements including future redshift drift observations
• Relationship between Bondi-Sachs quantities and source of gravitational radiation in asymptotically de Sitter spacetime
• Scalar field potentials for closed and open cosmological models
• Modeling effective FRW cosmologies with perfect fluids from states of the hybrid quantum Gowdy model
• Modified holographic Ricci dark energy coupled to interacting relativistic and non-relativistic dark matter in the nonflat universe
• Applications to cosmological models of a complex scalar field coupled to a U(1) vector gauge field
• Late-time acceleration driven by shift-symmetric Galileon in the presence of Torsion
• Late-time acceleration with steep exponential potentials
• Bound on photon circular orbits in general relativity and beyond
• Polytropic gas scalar field models of dark energy
• Classical and quantum $f(R)$ cosmology: The big rip, the little rip and the little sibling of the big rip
• The effect of modified dispersion relations on the thermodynamics of Schwarzschild black hole surrounded by quintessence
• Dynamical Study of DBI-essence in Loop Quantum Cosmology and Braneworld
• Instability of de Sitter space under thermal radiation in different vacua
• The observational constraints on the flat $\varphi$CDM models
• The Chameleon Effect in the Jordan Frame of the Brans--Dicke Theory
• Leptonic Dark Energy and Baryogenesis
• Dynamical analysis for a scalar-tensor model with kinetic and non-minimal couplings
• Constraints from the Old Quasar APM 08279+5255 on Two Classes of $\Lambda ($t$)$-Cosmologies
• Bianchi VI_0&III models. Self-similar approach
• Constraints on kinematic parameters at $z\ne 0$
• Signature flips in time-varying $\Lambda (t)$ cosmological models with observational data
• Holographic Λ(t)CDM model in a non-flat universe
• Transition from decelerated to accelerated cosmic expansion in braneworld universes
• Quintessential and phantom power-law solutions in scalar tensor model of dark energy
• Conformal symmetry of gravity and the cosmological constant problem
• Late time cosmic acceleration from natural infrared cutoff?
• Addressing the Hubble tension in Yukawa cosmology?
• Einstein spaces in warped geometries in five dimensions
• Analytical solutions of the geodesic equation in the space-time of a black hole surrounded by perfect fluid in Rastall theory
• LRS Bianchi I model with constant deceleration parameter
• Testing feasibility of scalar-tensor gravity by scale dependent mass and coupling to matter
• Magnetized cosmological model with variable deceleration parameter
• Black hole solutions in modified gravity induced by quantum metric fluctuations
• Inflation and New Agegraphic Dark Energy
• Cosmological singularities in $f(T,\varphi )$ gravity
• Gravity in the dynamical approach to the cosmological constant
• Unifying static analysis of gravitational structures with a scale-dependent scalar field gravity as an alternative to dark matter
• Laboratory tests on dark energy
• Dynamical stability of an interacting quintessence with varying-mass dark matter particles in Lyra manifold
• Non-parametric modeling of the cosmological data, base on the ${\chi }^2$ distribution
• Dynamical system analysis of logotropic dark fluid with a power law in the rest-mass energy density
• Gravitoelectromagnetism and Dark Energy in Superconductors
• Non-stationary de Sitter cosmological models
• Constraining Exponential f(Q) Gravity with Cosmic Chronometers and Supernovae: A Data-Driven Analysis
• Scalar Field as Dark Energy Accelerating Expansion of the Universe
• Signature flip in deceleration parameter: A thermodynamic phase transition?
• The universe is accelerating. Do we need a new mass scale?
• Can neutrino viscosity drive the late time cosmic acceleration?
• Classification of the FRW universe with a cosmological constant and a perfect fluid of the equation of state $p=w\rho$
• A new logotropic model based on a complex scalar field with a logarithmic potential
• Age problem in holographic dark energy
• One Loop Calculation of Cosmological Constant in a Scale Invariant Theory
• Phantom-Like Behavior in Modified Teleparallel Gravity
• The structure of hybrid neutron star in Einstein-$\Lambda$ gravity
• Perturbations in Tachyon Dark Energy and their Effect on Matter Clustering
• Phase space analysis for a scalar-tensor model with kinetic and Gauss-Bonnet couplings
• $\infty -\infty$: vacuum energy and virtual black-holes
• Some models of holographic dark energy on the Randall-Sundrum brane and observational data
• The cosmological constant filter without big bang singularity
• Higher Dimensional Cosmological Implications Of A Decay Law For $\Lambda$ Term : Expressions For Some Observable Quantities
• Condensation of Galactic Cold Dark Matter
• Falsifying Cosmological Constant
• Schwarzschild-de Sitter Metric and Inertial Beltrami Coordinates
• A Viable Dark Fluid Model
• Observational Constraints of Homogeneous Higher Dimensional Cosmology with Modified Chaplygin Gas
• Cosmological implications of shift symmetric Galileon field
• Configurational Entropy as a tool to select a physical Thick Brane Model
• Noncommutative Universe and Chameleon Field Dynamics
• Ghost Chaplygin scalar field model of dark energy
• de Sitter Gauge Theory of Gravity: An Alternative Torsion Cosmology
• Semiclassical lukewarm black holes
• Transition between phantom and non-phantom phases with time dependent cosmological constant and Cardy-Verlinde formula
• Modelling Time-varying Dark Energy with Constraints from Latest Observations
• Shadows of trans-planckian physics on cosmology and the role of the zero-point energy density
• Dynamical analysis of the Tsallis holographic dark energy models with event horizon as cut-off and interaction with matter
• Dynamical systems analysis of an interacting scalar field model in an anisotropic universe
• Exploring Modified Gravity: Constraints on the $\mu$ and $\Sigma$ Parametrization with WMAP, ACT, and SPT
• Functional Determinants in Higher Derivative Lagrangian Theories
• Non-minimal coupling of the phantom field and cosmic acceleration
• Standard Model with Cosmologically Broken Quantum Scale Invariance
• Interacting Holographic dark energy with matter creation: A dynamical system analysis
• CMB anisotropy induced by tachyonic perturbations of dark energy
• Reconstructing FHDE with Scalar and Gauge Fields
• A Better Way to Reconstruct Dark Energy Models ?
• Two-field cosmological models and large-scale cosmic magnetic fields
• Probing departures from $\Lambda$CDM by late-time datasets
• Energy conditions in $f(Q,L_m)$ gravity
• Acceleration of a Spherical Brane-Universe
• Brane Universes and the Cosmological Constant
• Constraints on Dark Energy Models from Weak Gravity Conjecture
• Nonlinear Spinor Fields in Bianchi type-VI spacetime
• Finslerian dipolar modulation of the CMB power spectra at scales $2<l<600$
• Aspects of Some New Versions of Pilgrim Dark Energy in DGP Braneworld
• Clustering GCG: a viable option for unified dark matter-dark energy?
• Non-local scalar fields inflationary mechanism in light of Planck $2013$
• Lower Limit to the Scale of an Effective Theory of Gravitation
• Cosmology as a search for overall equilibrium
• A Way to Dynamically Overcome the Cosmological Constant Problem
• Quintessence and Thermal Matter
• Late transient acceleration of the universe in string theory on $S^1/Z_2$
• Homogeneous cosmologies and the Maupertuis-Jacobi principle
• Constraints on Late Time Violations of the Equivalence Principle in the Dark Sector
• Singling out modified gravity parameters and datasets reveals a dichotomy between Planck and lensing
• Quantum Theory at Planck Scale, Limiting Values, Deformed Gravity and Dark Energy Problem
• Scalar Dark Energy Models and Scalar-Tensor Gravity: Theoretical Explanations for the Accelerated Expansion of Present Universe
• "Expansion" around the vacuum: how far can we go from Lambda?
• Tsallis holographic inflation in $f(R,T)$ gravity: CMB constraints, reheating, and swampland implications
• Examining the validity of the minimal varying speed of light model through cosmological observations: relaxing the null curvature constraint
• New perspectives on future rip scenarios with holographic dark energy
• Astrophysical and electromagnetic emissivity properties of black holes surrounded by a quintessence type exotic fluid in the Scalar-Vector-Tensor Modified Gravity
• Non-vacum conformally flat space-times: dark energy
• Late cosmic acceleration in a vector--Gauss-Bonnet gravity model
• Thermodynamic Properties of Spherically-Symmetric, Uniformly-Accelerated Reference Frames
• Constraints on the $\Lambda$CDM model with redshift tomography
• Notes on diffeomorphisms symmetry of $f(R)$ gravity in the cosmological context
• Dynamical evolution of phantom scalar perturbation in the background of Schwarzschild black String spacetime
• Radiative neutrino mass generation and dark energy
• Revisiting holographic dark energy from the perspective of multi-messenger gravitational wave astronomy: future joint observations with short gamma-ray bursts
• Vacuum driven accelerated expansion
• Observational Constraints of Modified Chaplygin Gas in RS II Brane
• Tachyon field inspired dark energy and supernovae constraints
• Probing interaction in the dark sector
• Sensitivity and figures of merit for dark energy supernovae surveys
• Tracing the equation of state and the density of cosmological constant along z
• Can Dark Matter be a Scalar Field?
• Structure formation in clustering DBI dark energy model with constant sound speed
• Revisiting Cardassian Model and Cosmic Constraint
• On analytical solutions of f(R) modified gravity theories in FLRW cosmologies
• Vacuum energy sequestering and cosmic dynamics
• Effective approach to the Antoniadis-Mottola model: quantum decoupling of the higher derivative terms
• Constraining Parameters of Generalized Cosmic Chaplygin Gas in Loop Quantum Cosmology
• A numerical approach to model independently reconstruct $f(R)$ functions through cosmographic data
• An optimal system and invariant solutions of dark energy Models in cylindrically symmetric space-time
• Reconstructing modified gravity with holographic vacuum energy density
• A minimal set of invariants as a systematic approach to higher order gravity models: Physical and Cosmological Constraints
• Reconstruction of the interaction term between dark matter and dark energy using SNe Ia
• Quantum radiation of Kerr black hole in de Sitter background
• Scalar field description of a parametric model of dark energy
• Cosmological perturbations in the $\Lambda$CDM-like limit of a polytropic dark matter model
• Universe consisting of diffusive dark fluids: thermodynamics and stability analysis
• Cosmology with higher-derivative matter fields
• Evolution of spherical over-densities in tachyon scalar field model
• Thawing F(R) cosmology
• Parameterized Deceleration in $f(Q,C)$ Gravity: A Logarithmic Approach
• Nonlinear Spinor Fields in Bianchi type-III spacetime
• Anti-Anthropic Solutions to the Cosmic Coincidence Problem
• A Topological-like Model for Gravity in 4D Space-time
• Friedmann-Robertson-Walker Models with Late-Time Acceleration
• Testing CCDM Cosmology with the Radiation Temperature-Redshift Relation
• Generalized Ghost Dark Energy in DGP Model
• Multigravity and Space Time Foam
• Probable ratio of the vacuum energy in a Schwarzchild-de Sitter space
• Scenarios of cosmic string with variable cosmological constant
• Einstein gravity with torsion induced by the scalar field
• Cosmological scenarios from multiquintessence
• Quintessence Cosmology with an Effective $\Lambda$-Term in Lyra Manifold
• Intra--Galactic thin shell wormhole and its stability
• Interacting dark energy model in the brane scenario: A Dynamical System Analysis
• Black Hole Dynamics in Power-law based Metric $f(R)$ Gravity
• Can Quantum Gravitational Effects Influence the Entire History of the Universe?
• The growth of DM and DE perturbations in DBI non-canonical scalar field scenario
• Phantom Divide Crossing with General Non-minimal Kinetic Coupling
• Validity of Thermodynamical Laws in Dark Energy Filled Universe
• Dynamics of two-scalar-field cosmological models beyond the exponential potential
• Tachyon field non-minimally coupled to massive neutrino matter
• The unphysical character of dark energy fluids
• A not so brief commentary on cosmological entropy bounds
• Non-parametric reconstruction of the fine structure constant with galaxy clusters
• Non-trivial time crystal-like ground state for gravitational perturbation in quadratic gravity
• Structure formation and CMBR anisotropy spectrum in the inflessence model
• Anisotropic Cosmological Model with Variable G and Lambda
• Study of Thermodynamics in Generalized Holographic and Ricci Dark Energy Models
• Little Rip, Pseudo Rip and bounce cosmology with generalized equation of state in non-standard backgrounds
• Stabilization of internal space in noncommutative multidimensional cosmology
• $\sigma$CDM coupled to radiation. Dark energy and Universe acceleration
• Dynamical Analysis of an $n-H-T$ Cosmological Quintessence Real Gas Model with a General Equation of State
• Cosmic Acceleration and Geodesic Deviation in Chameleon Scalar Field Model
• Variable Chaplygin Gas: Constraints from Supernovae, GRB and Gravitational Wave Merger Events
• A Possible Late Time $\Lambda$CDM-like Background Cosmology in Relativistic MOND Theory
• Dark Energy from holographic theories with hyperscaling violation
• Observational constraints on the unified dark matter and dark energy model based on the quark bag model
• Splitting the source term for the Einstein equation to classical and quantum parts
• Running vacuum and H^4-inflation
• Type V singularities with inhomogeneous equations of state
• Effect of some modified models of gravity on the radial velocity of binary systems
• Thermodynamics of Modified Chaplygin-Jacobi Gas and Modified Chaplygin-Abel Gas: Stability Analysis and Observational Constraints
• Quantum vacuum and accelerated expansion
• Brane cosmology in the Horava-Witten heterotic M-Theory on $S^1/Z_2$
• Can an Anti-de Sitter Vacuum in the Dark Energy Sector Explain JWST High-Redshift Galaxy and Reionization Observations?
• Linearized Field Equations and Extra Force in $f(R,{\mathbf{T}}^{(n)})$ Extended Gravity
• Interacting Viscous Dark Energy in Bianchi Type-III Universe
• Inflation in non-local hybrid metric-Palatini gravity
• Role of generalized Ricci dark energy on Chameleon field in the emergent universe
• Teleparallel dark energy in a nonflat universe
• A gracious exit from the matter-dominated phase in a quantum cosmic phantom model
• $f(R)$ Dual Theories of Quintessence : Expansion-Collapse Duality
• Dark energy effects on realistic neutron stars
• Intensity mapping of post-reionization 21-cm signal and its cross-correlations as a probe of $f(R)$ gravity
• Role of Tachyonic Field in Accelerating Universe in Presence of Perfect Fluid
• A Solution to the Cosmological Constant Problem
• The torsion cosmology in Kaluza-Klein theory
• Evolution of Dark Energy Perturbations for Slotheon Field and Power Spectrum
• Time Evolution of the Matter Content of the Expanding Universe in the Framework of Brans-Dicke Gravity
• Dual CFT on Nariai limit for Kerr-Sen-dS black holes
• Gravitational Forces on a Codimension-2 Brane
• Probing Lambda-DGP Braneworld Model
• Constructing Viable Interacting Dark Matter and Dark Energy Models: A Dynamical Systems Approach
• Accretion of Holographic Dark Energy : Dependency only upon Horizon Radius of Expanding Universe
• Cosmic acceleration in a model of scalar-tensor gravitation
• Bulk scalar field in brane-worlds with induced gravity inspired by the $\mathcal{L}(R)$ term
• Flat-brane Compactifications in Supergravity Induced by Scalars
• Entanglement production in Einstein-Cartan theory
• Observational constraints on viscous cosmology in $f(T,L_m)$ gravity
• Tsallis holographic dark energy model with event horizon cutoff in modified gravity
• Implication of Spatial and Temporal Variations of the Fine-Structure Constant
• Emergent time, cosmological constant and boundary dimension at infinity in combinatorial quantum gravity
• Black Holes in Accelerated Universe
• Thermodynamics as a tool for (quantum) gravitational dynamics
• Dynamics of cosmological perturbations in modified Brans-Dicke cosmology with matter-scalar field interaction
• Production of primordial gravitational waves in a simple class of running vacuum cosmologies
• Quantization of gravity and finite temperature effects
• Bose-Einstein Condensate Dark Matter Halos confronted with galactic rotation curves
• Timelike orbits around accelerating black holes
• Can the cosmological dark sector be modeled by a single scalar field?
• Cosmic scenarios in $f(R)$ gravity: a complete evolution
• Spherical symmetry in a dark energy permeated space-time
• Exact solutions in a scalar-tensor model of dark energy
• Generalized particle dynamics in anti de Sitter spaces: A source for dark energy
• Phantom Mimicry on the Normal Branch of a DGP-inspired Braneworld Scenario with Curvature Effect
• Hidden conformal symmetry and pair production near the cosmological horizon in Kerr-Newman-Taub-NUT-de Sitter spacetime
• Tracking $f(R)$ cosmology
• Analytical considerations about the cosmological constant and dark energy
• Effective de Sitter space, quantum behaviour and large-scale spectral dimension (3+1)
• Quintessential inflation from 5D warped product spaces on a dynamical foliation
• Constraining the runaway dilaton and quintessential dark energy
• Generalized Ghost Pilgrim Dark Energy Fractal Cosmology with Observational Constraint
• Rips and regular future scenario with Holographic Dark Energy: A comprehensive look
• The generalized second law of thermodynamics of the universe bounded by the event horizon and modified gravity theories
• Cosmological constant in a quantum fluid model
• Inflation in Myrzakulov $F(R,T)$ Gravity: A Comparative Study in Metric, Symmetric Teleparallel, and Weitzenböck Formalisms
• Power Law and Logarithmic Ricci Dark Energy Models in Horava-Lifshitz Cosmology
• Realizing the phantom-divide crossing with vector and scalar fields
• Implementation of cosmological bounce inflation with Nojiri-Odintsov generalized holographic dark fluid
• Can the NANOGrav observations constrain the geometry of the universe?
• Unveiling a universal relationship between the f(R) parameter and neutron star properties
• The laws of nature and the problems of modern cosmology
• Cosmological Solutions of Chameleon Scalar Field Model
• Kantowski-Sachs cosmology in scalar-torsion theory
• An exact solution of the observable universe in Bianchi V space-time
• Supersymmetry then and now
• New method of exponential potentials reconstruction based on given scale factor in phantonical two-field models
• Modified gravity with disappearing cosmological constant
• LRS Bianchi I model with perfect fluid equation of state
• A Kaluza-Klein Inspired Brans-Dicke Gravity with Dark Matter and Dark Energy Model
• Indirect detection of Cosmological Constant from interacting open quantum system
• Extracting the Cosmological Constant from the Wheeler DeWitt Equation in a Modified Gravity Theory
• Thawing vs. Tracker Solutions: A Dynamical Systems Approach
• Observational constraints on a Yang-Mills condensate dark energy model
• Cosmological Constant from the Entropy Balance Condition
• Observational Study of Higher Dimensional Magnetic Universe in Non-linear Electrodynamics
• Possible use of self-calibration to reduce systematic uncertainties in determining distance-redshift relation via gravitational radiation from merging binaries
• Study of thermal stability for different dark energy models
• Analysis on a General Class of Holographic Type Dark Energy Models
• Collapse of non-spherically symmetric scalar field distributions
• Linear dark energy equation of state revealed by supernovae?
• Dynamics of $f(R)$ gravity models and asymmetry of time
• The Energy Density of the Quaternionic Field as Dark Energy in the Universe
• Ether and Relativity
• Non-Linearity-Free prediction of the growth-rate $f{\sigma }_8$ using Convolutional Neural Networks
• Non-Parametric Analysis for the Dark Matter Density Evolution
• On creating mass/matter by extra dimensions in the Einstein-Gauss-Bonnet gravity
• Probing Cosmic Acceleration by Using Model-Independent Parametrizations and Three Kinds of Supernova Statistics Techniques
• Twinlike models for parametrized dark energy
• Relating the cosmological constant and slow roll to conformal symmetry breaking
• Signal photon flux generated by high-frequency relic gravitational waves
• Stability of curvature perturbation with new covariant form for energy-momentum transfer in dark sector
• Deflation of Vacuum Energy During Inflation Due to Bulk-Brane Interaction
• APSIS - an Artificial Planetary System in Space to probe extra-dimensional gravity and MOND
• Spherical space in the Newtonian limit: The cosmological constant
• Power spectra in extended tachyon cosmologies
• Cosmological Dynamics of Interacting Logarithmic Entropy Corrected Holographic Dark Energy Model
• On the physical implications of Hawking's spacetime foam
• Statefinder diagnosis of nearly flat and thawing non-minimal quintessence
• Observational constraints on the massive neutrinos induced late-time cosmic acceleration
• A novel two-field pure K-essence for inflation, dark matter, dark energy and black holes
• Non-relativistic matter and Dark energy in a quantum conformal model
• Quantum backreaction of $O(N)$-symmetric scalar fields and de Sitter spacetimes at the renormalization point: renormalization schemes and the screening of the cosmological constant
• Schwarzschild black hole in dark energy background
• (Non-) geodesic motion in chameleon Brans Dicke model
• The Dispersion Relation for Matter Waves in a Two-Phase Vacuum
• Phantom scalar emission in the Kerr black hole spacetime
• f(R) in Holographic and Agegraphic Dark Energy Models and the Generalized Uncertainty Principle
• Cosmic expansion beyond $\Lambda$CDM: Investigating power-law and logarithmic corrections
• The Ambiguity in the Definition and Behavior of the Gravitational and Cosmological `Coupling Constants' in the Theory of Induced Gravity
• Probing dark fluids and modified gravity with gravitational lensing
• Characterizing the equivalence between dark energy and radiation using gamma-ray bursts
• Model-Agnostic Cosmological Inference with SDSS-IV eBOSS: Simultaneous Probing for Background and Perturbed Universe
• The importance of scalar fields as extradimensional metric components in Kaluza-Klein models
• Asymptotically Static Universe
• Constants of extended Standard Model and search for their temporal variations
• Cosmological Inflation in a Generalized Unimodular Gravity
• Cosmology from a running vacuum model driven by a scalar field
• Reconstruction of 5D Cosmological Model From Recent Observations
• Can MONDian vector theories explain the cosmic speed up ?
• Constraints on cosmological parameters and CMB first acoustic peak in conformal Killing gravity
• Constraining decaying dark energy density models with the CMB temperature-redshift relation
• Production of Chern-Simons bosons in decays of mesons
• Cosmic microwave background limits on spatially homogeneous cosmological models with dark energy
• Evolution of perturbations in the model of Tsallis holographic dark energy
• On the cosmological viability of the Hu-Sawicki type modified induced gravity
• Vacuum Energy and Renormalization of the Field-Independent Term
• The influence of quintessence on the motion of a binary system in cosmology
• Anisotropic cosmological solutions to the $Y(R)F^2$ gravity
• Inflation via logarithmic entropy-corrected holographic dark energy model
• Viscous fluid dynamics with decaying vacuum energy density
• Preheating and Dark Sector of Universe
• Confronting dark energy in Harada's Conformal Killing Gravity with observational data
• Accelerated paths and Unruh effect II: finite time detector response in (Anti) de Sitter spacetime and Huygen's Principle
• Spectrums of Black Hole in de Sitter Spacetime with Highly Damped Quasinormal Modes: High Overtone Case
• Cosmological Constant of the $(p+1)$-Dimensional World, Embedded in the $d$-Dimensional Bulk Space
• Dynamical Emergence of the Universe into the False Vacuum
• Derivation of the cutoff length from the quantum quadratic enhancement of a mass in vacuum energy constant Lambda
• De Sitter entropy: on-shell versus off-shell
• An Exploration of Heterogeneity in Supernova Type Ia Samples
• About Bianchi I with VSL
• Cosmological singularities in non-canonical models of dark energy
• Particle Motion Around Tachyon Monopole
• Dark aspects of massive spinor electrodynamics
• Supersymmetric Cosmological FRW Model and Dark Energy
• Weak Gravity Conjecture and Holographic Dark Energy Model with Interaction and Spatial Curvature
• Absence of curvature singularities in symmetric perfect fluid spacetimes in Einstein-Gauss-Bonnet Gravity
• Self-accelerated Universe
• Constraining Recent Oscillations in Quintessence Models with Euclid
• Dark Energy From The Gravity Vacuum
• Neutrino Interactions with perturbed Rastall Gravity: A Novel Approach to Reducing the Hubble Tension
• A density-responsive scalar-field framework for singularity regularization and dynamical dark energy
• Orbifold Branes in the $M_D\times M_{d^{+}}\times M_{d^{-}}$ Compactification of type II string on $S^1/Z_2$ and their cosmological applications
• Thermodynamics of horizons from a dual quantum system
• The frozen vanilla model: Exploring dark sector interactions with delta effective theories
• A Joint Analysis of Strong Lensing and Type Ia Supernovae to Determine the Hubble Constant
• Quasinormal modes of the Hayward black hole surrounded by quintessence: scalar, electromagnetic and gravitational perturbations
• Interaction between Tachyon and Hessence (or Hantom) dark energies
• Cosmological viability of a double field unified model from warm inflation
• Cosmic Acceleration Data and Bulk-Brane Energy Exchange
• Cosmologies in $f(R,{\mathcal{L}}_m)$ theory with non-minimal coupling between geometry and matter
• Possible Relation between the Cosmological Constant and Standard Model Parameters
• Scalar field with the source in the form of the stress-energy tensor trace as a dark energy model
• Vacuum Polarization in an Anti-de Sitter Space as an Origin for a Cosmological Constant in a Brane World
• The role of noise in the early universe
• Quantum hoop conjecture and a natural cutoff for vacuum energy of a scalar field
• Generation of effective massive Spin-2 fields through spontaneous symmetry breaking of scalar field
• Degrees of Freedom of New General Relativity I: Type 2, Type 3, Type 5, and Type 8
• 5-dimensional braneworld with gravitating Nambu-Goto matching conditions
• Cosmology with dark energy decaying through its chemical-potential contribution
• Inconsistences in Interacting Agegraphic Dark Energy Models
• Quantum gravity and the holographic dark energy cosmology
• Causal cosmology with braneworld gravity including Gauss Bonnet coupling
• Fixing cosmological constant on the event horizon
• DESI constraints on two-field quintessence with exponential potentials
• Possible Measurable Effects of Dark Energy in Rotating Superconductors
• The dynamics of vacuum, gravity and matter: Implications on the fundamental constants
• Higher order mimetic gravity after GW170817
• A bound system in the expanding universe with modified holographic Ricci dark energy and dark matter
• Bouncing and collapsing universes dual to late-time cosmological models
• Particle Production Scenario in an Algebraically Coupled Quintessence Field with a Dark Matter Fluid
• Barboza-Alcaniz Equation of State Parametrization : Constraining the Parameters in Different Gravity Theories
• Density perturbation in the models reconstructed from jerk parameter
• Late time acceleration in 3-brane Brans-Dicke cosmology
• Gravastar-like black hole solutions in $q$-theory
• Probability distribution of the vacuum energy density
• Exact solution and exotic fluid in cosmology
• Entanglement in holographic dark energy models
• Interacting Models of Generalised Chaplygin Gas and Modified Chaplygin Gas with Barotropic Fluid
• Quintessence and false vacuum: Two sides of the same coin?
• Evolution of linear matter perturbations with error-bounded bundle physics-informed neural networks
• Wormholes, Void Bubbles and Vacuum Energy Suppression
• Towards a Machine Learning Solution for Hubble Tension: Physics-Informed Neural Network (PINN) Analysis of Tsallis Holographic Dark Energy in Presence of Neutrinos
• Evolution of the horizons for dark energy universe
• Galileon versus Quintessence: A comparative phase space analysis and late-time cosmic relevance
• Kinematical models of latetime cosmology and the statefinder diagnostic
• The peculiar case of the Viaggiu holographic dark energy
• Conformal Killing Gravity: New Constraints from DESI DR2 BAO datasets
• On rips and cosmological singularities in a universe merging with baby universes
• Exploring the Latest Pantheon SNIa Dataset by Using Three Kinds of Statistics Techniques
• Cosmological Dynamics of de Sitter Gravity
• Exploring the Universe Expansion History with f(R,T) Gravity: Constraints on Cosmological Parameters
• Revisited apparent horizon entropy and GSL in modified gravity
• Inference of cosmological models with principal component analysis
• Quasiparticle Cosmology
• A Viable model for modified gravity
• Geometric acceleration in $f(Q,C)$ theories
• Non-linear energy conservation theorem in the framework of Special Relativity
• Interacting Quintessence and Growth of Structure
• A new approach to modified-gravity models
• Fermionic Tachyons as a Source of Dark Energy
• Compact Objects in 4D Einstein Gauss Bonnet Gravity A Data Based Perspective
• Casimir Energy of the Universe and the Dark Energy Problem
• Scalar field in cosmology: Potential for isotropization and inflation
• Constraining bouncing cosmology caused by Casimir effect
• Density pertubation of unparticle dark matter in the flat Universe
• Generalized Second Law of Thermodynamics on the Event Horizon for Interacting Dark Energy
• Radiative generation of metastable minima in a scalar-fermion model
• A semi-cosmographic approach to study cosmological evolution in phase space
• Cosmological scenario based on the first and second laws of thermodynamics: Thermodynamic constraints on a generalized cosmological model
• Stability of Differentially Rotating Disks in $f(T)$ Theory
• Particle mixing as possible explanation of the dark energy conundrum
• Revisiting the modified Starobinsky model with cosmological constant
• Unruh effect as foundation of universal gravitation within the cosmological scenario
• Exact solutions of embedding the 4D Universe in a 5D Einstein manifold
• The analogy of the Lorentz-violating fermion-gravity and fermion photon couplings
• An exotic k-essence interpretation of interactive cosmological models
• Cosmological constant as a finite temperature effect
• Cosmic expansion history analysis with Hubble parametrization in $Q^n$ gravity
• Toward solving the cosmological constant problem by embedding
• Interacting tachyon with varying mass dark matter
• String Cosmology in LRS Bianchi Type-II Dusty Universe with Time Decaying Vacuum Energy Density $\Lambda$
• Onset of dark energy from cosmological scalarization and gravitational wave speed
• Kinetic coupled tachyon: A dynamical system analysis
• Effects of the quantum vacuum at a cosmic scale and of dark energy
• At the Edge of Uncertainty: Decoding the Cosmological Constant value with Bose-Einstein Distribution
• Is the $\Lambda$CDM Model in Crisis?
• Generalized Second Law and Thermodynamical Aspects of $f(Q,\mathcal{T})$ Gravity
• Running Einstein Constant and a Possible Vacuum State of the Universe
• Dark energy, chaotic fields, and fundamental constants
• What We Know and What We Don't Know About the Universe
• Another Two Dark Energy Models Motivated from Karolyhazy Uncertainty Relation
• Redshift-space distortion from dynamical dark energy with time-dependent Lagrangian perturbation theory
• Circumventing Cosmic Variance via Remote Quadrupole Measurements
• The Preferred System of Reference Reloaded
• Bound-state solutions for the charged Dirac oscillator in a rotating frame in the Bonnor-Melvin-Lambda spacetime
• Calculations in induced gravity from higher-derivative field theories
• Effective $\Lambda$CDM model emerging from $f(Q,T)$ under a special EOS limit in symmetric cosmology with Bayesian and ANN observational constraints
• Gravitational Lensing Effect from The Revised Deser-Woodard Nonlocal Gravity
• Emergent diffeomorphism invariance in toy models
• Spontaneous Symmetry Breaking Vacuum Energy in Cosmology
• The long freeze: an asymptotically static universe from holographic dark energy
• Phase space analysis and cosmography of a two-fluid cosmological model
• Vacuum pressure, dark energy and dark matter
• Modified Power law Inflation: solution to the graceful exit problem and improvement of dark energy models
• Sub-bosonic (deformed) ladder operators
• Observational Constraints and Geometric Diagnostics of Barboza-Alcaniz and Logarithmic Dark Energy Parametrizations
• Bayesian Inference of Neutron Star Properties in $f(Q)$ Gravity Using NICER Observations
• Revisiting observational constraints on coupled exponential quintessence with energy and momentum transfers: degeneracy with massive neutrinos
• $\Lambda$CDM, $\Lambda$DGP and extended phantom-like cosmologies
• Parametrization of Born-Infeld Type Phantom Dark Energy Model
• Matter loops corrected modified gravity in Palatini formulation
• Shadow of a Noncommutative Thin-Shell Gravastar
• Kiselev black hole and the ultra-slow evaporating behavior
• Properties of the magnetic universe with positive cosmological constant
• Structure formation in a non-canonical scalar field model of clustering dark energy
• Probing dark energy using anisotropies in the clustering of post-EoR HI distribution
• Holographic dark energy models with Interactions and entropy corrections for different cutoffs in the Brans-Dicke cosmology
• Modified Cosmology from Mass-to-Horizon Relation: Background Evolution
• Dynamics of tachyon dark energy on large scales and its imprint on observed galaxy power spectrum
• Dark Energy: relating the evolution of the universe from the past to the future
• On curvature coupling and quintessence fine-tuning
• The Limits of Quintessence
• No preference for generalized emergent dark energy from current cosmological data
• Some Consequences of Dark Energy Density varying Exponentially with Scale Factor
• Current constraints on the minimally extended varying speed of light model through the cosmic distance duality relation
• Gravity on de-Sitter 3-Brane, Induced Einstein-Hilbert Term and Massless Gravitons
• Density perturbation and cosmological evolution in the presence of magnetic field in $f(R)$ gravity models
• The dynamics of background evolution and structure formation in phase space: a semi-cosmographic reconstruction
• The $f(Q)$ gravity and affine EoS: Compatibility and observational constraints
• On Generalized Theories of Varying Fine Structure Constant
• Viaggiu holographic dark energy in light of DESI DR2
• Dark energy from quantum fluctuations
• Intermediate evolution using SNIa, and BAO
• Disentangling the Cosmic/Comoving Duality: The Cognitive Stability and Typicality Tests
• Gravitational Waves beyond the Linear Approximation and Gravitational Wave Reflection
• Reconstructing the Equation of State for Dark Energy In the Double Complex Symmetric Gravitational Theory
• Evolution of entropic dark energy and its phantom nature
• Geometrothermodynamics of a gravitating system with axially symmetric metric
• Testing a nonlinear solution of the Israel-Stewart theory
• A Note on the Integral Formulation of Einstein's Equations Induced on a Braneworld
• Matter-antimatter asymmetry and other cosmological puzzles via running vacuum cosmologies
• On the Stability of Dark Energy Scalar Field Reconstruction from SNe Ia Data
• Thermalon mediated AdS to dS phase transitions in Einstein-Gauss-Bonnet-massive gravity
• Maximum mass limit of strange stars in quadratic curvature-matter coupled gravity
• Supersymmetric Barotropic FRW Model and Dark Energy