Phantom Energy and Cosmic Doomsday

Abstract

Cosmologists have long wondered whether the Universe will eventually re-collapse and end with a Big Crunch, or expand forever, becoming increasingly cold and empty. Recent evidence for a flat Universe, possibly with a cosmological constant or some other sort of negative-pressure dark energy, has suggested that our fate is the latter. However, the data may actually be pointing toward an astonishingly different cosmic end game. Here, we explore the consequences that follow if the dark energy is phantom energy, in which the sum of the pressure and energy density is negative. The positive phantom-energy density becomes infinite in finite time, overcoming all other forms of matter, such that the gravitational repulsion rapidly brings our brief epoch of cosmic structure to a close. The phantom energy rips apart the Milky Way, solar system, Earth, and ultimately the molecules, atoms, nuclei, and nucleons of which we are composed, before the death of the Universe in a ``Big Rip''.

4 pages, 2 figures, latex

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• The little sibling of the big rip singularity
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• The Degree of Fine-Tuning in our Universe -- and Others
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• Tracing dark energy history with gamma ray bursts
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• Double shadow of a regular phantom black hole as photons couple to Weyl tensor
• Dark Energy Coupled with Dark Matter in Viscous Fluid Cosmology
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• What do we know about cosmography
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• Super-acceleration in non-minimal derivative coupling model
• The Evolution of Universe with th B-I Type Phantom Scalar Field
• UV stable, Lorentz-violating dark energy with transient phantom era
• Explicit Integration of Friedmann's Equation with Nonlinear Equations of State
• Finite-time future singularities models in $f(T)$ gravity and the effects of viscosity
• Wormhole supported by dark energy admitting conformal motion
• Dynamics of Quintessence with Thermal Interactions
• Coincidence Problem in YM Field Dark Energy Model
• Interacting model of new agegraphic dark energy: observational constraints and age problem
• Generalized second law of thermodynamics for a phantom energy accreting BTZ black hole
• Phantom dark energy as an effect of bulk viscosity
• Cosmic acceleration in unimodular gravity
• Braneworld dynamics in Einstein-Gauss-Bonnet gravity
• Novel Gravastar Solutions: Investigating Stability, Energy, and Entropy in the Presence of Cloud of Strings and Quintessence
• Primordial Black Holes in Phantom Cosmology
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• Viscous dark energy and generalized second law of thermodynamics
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• Braneworld Mimetic Cosmology
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• Coupled oscillators as models of phantom and scalar field cosmologies
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• Appeasing the Phantom Menace?
• Null Energy Condition violations in bimetric gravity
• Investigating the dark energy phenomenon in $f(R,L_m)$ cosmological models with observational constraints
• Interacting Ghost Dark Energy Models with Variable $G$ and $\Lambda$
• Phantom Wormholes in (2+1)-dimensions
• The transient acceleration from time-dependent interacting dark energy models
• Interacting dark energy: clarifying the cosmological implications and viability conditions
• The Apparent (Gravitational) Horizon in Cosmology
• Variety of cosmic acceleration models from massive $F(R)$ bigravity
• Quintessence Behaviour of an Anisotropic Bulk Viscous Cosmological Model in Modified $f(Q)$-Gravity
• New Interaction between Dark Energy and Dark Matter Changes Sign during Cosmological Evolution
• Power-law solutions in $f(T)$ gravity
• Testing Cosmology with Cosmic Sound Waves
• Constraints on Kinematic Model from Recent Cosmic Observations: SN Ia, BAO and Observational Hubble Data
• The New Ekpyrotic Ghost
• On the formalism of dark energy accretion onto black- and worm-holes
• Cold black holes and conformal continuations
• Cosmic age problem revisited in the holographic dark energy model
• Cosmological constraints on generalized Chaplygin gas model: Markov Chain Monte Carlo approach
• Eddington-Born-Infeld cosmology: a cosmographic approach, a tale of doomsdays and the fate of bound structures
• Dark matter-dark energy interaction for a time-dependent equation of state
• Non-minimal Gravitational Coupling of Phantom and Big Rip Singularity
• Stringy Dark Energy Model with Cold Dark Matter
• Does loop quantum cosmology replace the big rip singularity by a non-singular bounce?
• Extended Chaplygin Gas in Horava-Lifshitz Gravity
• Oscillations of the F(R) dark energy in the accelerating universe
• Effects of time-varying $\beta$ in SNLS3 on constraining interacting dark energy models
• Unified universe history through phantom extended Chaplygin gas
• Probing the Astrophysics of Cluster Outskirts
• Screening of cosmological constant for De Sitter Universe in non-local gravity, phantom-divide crossing and finite-time future singularities
• Tachyon cosmology, supernovae data and the Big Brake singularity
• Cosmological Bound from the Neutron Star Merger GW170817 in scalar-tensor and $F(R)$ gravity theories
• Rip cosmological models in extended symmetric teleparallel gravity
• Casimir Effects Near the Big Rip Singularity in Viscous Cosmology
• New "Bigs" in cosmology
• Type Ia Supernovae and Cosmology
• Unimodular $f(R,T)$ Gravity
• Coupled dark energy: a dynamical analysis with complex scalar field
• Dark Energy and Fate of the Universe
• 3-loop Yang-Mills Condensate Dark Energy Model And Its Cosmological Constraints
• Statefinder hierarchy model for the Barrow holographic dark energy
• Does the Big Rip survive quantization?
• Dynamics of coupled phantom and tachyon fields
• Can a primordial black hole or wormhole grow as fast as the universe?
• Dynamic wormhole solutions in Einstein-Cartan gravity
• The nature of spacetime singularities
• Thermodynamical aspects of Bianchi type-I Universe in quadratic form of $f\left(Q\right)$ gravity and observational constraints
• Universe Models with Negative Bulk Viscosity
• Non-minimal Maxwell-Modified Gauss-Bonnet Cosmologies: Inflation and Dark Energy
• Black Holes in the Universe: Generalized Lemaitre-Tolman-Bondi Solutions
• Chemical Potential and the Nature of the Dark Energy: The case of phantom
• The One-Loop Effective Action in phi^4 Theory Coupled Non-Linearly with Curvature Power and Dynamical Origin of Cosmological Constant
• Noether analysis of Scalar-Tensor Cosmology
• An exposition on Friedmann Cosmology with Negative Energy Densities
• Generalised teleparallel quintom dark energy non-minimally coupled with the scalar torsion and a boundary term
• Dynamics of interacting phantom and quintessence dark energies
• Crossing of the w=-1 Barrier in Two-Fluid Viscous Modified Gravity
• Preventing eternality in phantom inflation
• Dark energy and dark matter from cosmological observations
• String inspired explanation for the super-acceleration of our universe
• Exploring the Systematic Uncertainties of Type Ia Supernovae as Cosmological Probes
• Spherical inhomogeneous solutions of Einstein and scalar-tensor gravity: a map of the land
• Observational constraints on cosmological future singularities
• Type I singularities and the Phantom Menace
• Regularizing cosmological singularities by varying physical constants
• Variable Equation of State for Generalized Dark Energy Model
• Cosmology with non-minimal derivative couplings: perturbation analysis and observational constraints
• Interacting new agegraphic viscous dark energy with varying $G$
• The holographic induced gravity model with a Ricci dark energy: smoothing the little rip and big rip through Gauss-Bonnet effects?
• Phantom cosmology in an Extended Theory of Gravity
• On 'Nothing'
• Cosmological phase space of generalized hybrid metric-Palatini theories of gravity
• Cosmological Parameters from the SDSS DR5 Velocity Dispersion Function of Early-Type Galaxies through Radio-Selected Lens Statistics
• Complex Lagrangians and phantom cosmology
• Analytical approach of late-time evolution in a torsion cosmology
• Non-minimal derivative coupling gravity in cosmology
• Statefinder Parameters for Interacting Phantom Energy with Dark Matter
• Gravitational Collapse in General Relativity and in $R^2$-gravity: A Comparative Study
• Fractional Action Cosmology: Some Dark Energy Models in Emergent, Logamediate and Intermediate Scenarios of the Universe
• The coincidence problem in linear dark energy models
• Bouncing Universe and Reconstructing Vector Field
• Exotic solutions in General Relativity: Traversable wormholes and 'warp drive' spacetimes
• Modified Eddington-inspired-Born-Infeld Gravity with a Trace Term
• Neutron Stars in Scalar-tensor Gravity with Quartic Order Scalar Potential
• Cosmic Constraint on Ricci Dark Energy Model
• Cosmological perturbations in an effective and genuinely phantom dark energy Universe
• Brane Cosmological Evolution With Bulk Matter
• Dynamical Evolution of Interacting Modified Chaplygin Gas
• DGP Cosmology with a Non-Minimally Coupled Scalar Field on the Brane
• Non-minimal geometry-matter couplings in Weyl-Cartan space-times: $f(R,T,Q,T_m)$ gravity
• Stability of cylindrical thin shell wormhole during evolution of universe from inflation to late time acceleration
• Quasi-Rip: A New Type of Rip Model without Cosmic Doomsday
• Testing Einstein's gravity and dark energy with growth of matter perturbations: Indications for new Physics?
• Deformed Matter Bounce with Dark Energy Epoch
• Phantom Energy Accretion onto Black Holes in Cyclic Universe
• Phase space analysis and singularity classification for linearly interacting dark energy models
• Reconstructing a String-Inspired Quintom Model of Dark Energy
• Cosmic age, Statefinder and $Om$ diagnostics in the decaying vacuum cosmology
• Jeans type instability of a complex self-interacting scalar field in general relativity
• Is Eddington-Born-Infeld theory really free of cosmological singularities?
• Post-Newtonian parameters and cosmological constant of screened modified gravity
• Redshift drift in varying speed of light cosmology
• Generalized holographic dark energy model described at the Hubble length
• Singularity of spherically-symmetric spacetime in quintessence/phantom dark energy universe
• Confronting dark energy models mimicking $\Lambda$CDM epoch with observational constraints: future cosmological perturbations decay or future Rip?
• Affine parameterization of the dark sector: costraints from WMAP5 and SDSS
• Joining the Hubble Flow: Implications for Expanding Space
• Braneworlds in six dimensions: new models with bulk scalars
• Scalar-tensor cosmology with R^{-1} curvature correction by Noether Symmetry
• Phantom singularities and their quantum fate: general relativity and beyond
• The w = -1 crossing of the quintom model with slowly-varying potentials
• Constraints on Singular Evolution from Gravitational Baryogenesis
• Statefinder diagnostic and constraints on the Palatini f(R) gravity theories
• Constrained evolution of effective equation of state parameter in non-linear $f(R,L_m)$ dark energy model: Insights from Bayesian analysis of cosmic chronometers and Pantheon samples
• Complete conformal classification of the Friedmann-Lemaitre-Robertson-Walker solutions with a linear equation of state
• Phantom cosmologies and fermions
• Analytical solutions of accreting black holes immersed in a Lambda-CDM model
• Holographic dark energy in Brans-Dicke cosmology with Granda-Oliveros cut-off
• Cosmological Constant Problems and Renormalization Group
• Cosmological singularities in Born-Infeld determinantal gravity
• The quantum realm of the "Little Sibling" of the Big Rip singularity
• DESI results: Hint towards coupled dark matter and dark energy
• Accretion of Phantom Energy and Generalized Second Law of Thermodynamics for Einstein-Maxwell-Gauss-Bonnet Black Hole
• Cosmological dynamics in higher-dimensional Einstein-Gauss-Bonnet gravity
• Dissimilar Donuts in the Sky? Effects of a Pressure Singularity on the Circular Photon Orbits and Shadow of a Cosmological Black Hole
• Duality extended Chaplygin cosmologies with a big rip
• Density Perturbation Growth in Teleparallel Cosmology
• Gordon and Kerr-Schild ansatze in massive and bimetric gravity
• Viscosity-Induced Crossing of the Phantom Barrier
• Friedmann-Lemaitre Cosmologies via Roulettes and Other Analytic Methods
• Localization of nonlocal cosmological models with quadratic potentials in the case of double roots
• Static phantom wormholes of finite size
• Clustering, Angular Size and Dark Energy
• Multiple kinetic k-essence, phantom barrier crossing and stability
• Cosmological tests of sudden future singularities
• Interacting quintessence dark energy models in Lyra manifold
• Chameleonic Generalized Brans--Dicke model and late-time acceleration
• Gravitational field of a slowly rotating black hole with phantom global monopole
• What $\xi$? Cosmological constraints on the non-minimal coupling constant
• Generalized Second Law and phantom Cosmology: accreting black holes
• Soft coincidence in late acceleration
• Thermodynamic aspects of dark energy fluids
• Singular $F(R)$ Cosmology Unifying Early and Late-time Acceleration with Matter and Radiation Domination Era
• Stability of the Einstein static universe in Eddington-inspired Born-Infeld theory
• Can black holes be torn up by phantom dark energy in cyclic cosmology?
• Resolution of type IV singularities in quantum cosmology
• Post-Newtonian Approximation of Teleparallel Gravity Coupled with a Scalar Field
• Phantom-like behaviour in a brane-world model with curvature effects
• The Jungle Universe
• On phantom thermodynamics with negative temperature
• Generalized Chaplygin gas and accelerating universe in $f(Q,T)$ gravity
• Cosmological singularities in interacting dark energy models with an $\omega (q)$ parametrization
• Cosmological viability conditions for $f(T)$ dark energy models
• Fluid observers and tilting cosmology
• Crossing the phantom divide with dissipative normal matter in the Israel-Stewart-Hiscock formalism
• Braneworld gravitational collapse from a radiative bulk
• Inhomogeneous viscous fluids in FRW universe and finite-future time singularities
• Extended quintessence, inflation, and stable de Sitter spaces
• Traversable Wormhole in Einstein 3-Form Theory With Self-Interacting Potential
• Bulk phantom fields, increasing warp factors and fermion localisation
• Effective growth of matter density fluctuations in the running LCDM and LXCDM models
• Holographic, new agegraphic and ghost dark energy models in fractal cosmology
• Wormholes supported by phantom energy from Shan-Chen cosmological fluids
• Tradeoff between Smoother and Sooner "Little Rip"
• Bayesian evidence for $\alpha$-attractor dark energy models
• Comparison between the Logotropic and $\Lambda$CDM models at the cosmological scale
• Cosmological rolling solutions of nonlocal theories
• Effects of Quantized Scalar Fields in Cosmological Spacetimes with Big Rip Singularities
• Searching for dynamical black holes in various theories of gravity
• Testing signatures of phantom crossing through full-shape galaxy clustering analysis
• Dynamics of the generalized unimodular gravity theory
• First-order thermodynamics of scalar-tensor cosmology
• Genesis of Dark Energy: Dark Energy as Consequence of Release and Two-stage Tracking Cosmological Nuclear Energy
• Strong Bounds on Sum of Neutrino Masses in a 12 Parameter Extended Scenario with Non-Phantom Dynamical Dark Energy ($w(z)\ge -1$)
• Recent advances in cosmological singularities
• Phantom Wormhole Solutions in a Generic Cosmological Constant Background
• Exploring late-time cosmic acceleration: A study of a linear $f(T)$ cosmological model using observational data
• Some notes on the Big Trip
• Noether symmetric classical and quantum scalar field cosmology
• Stability analysis and future singularity of the $m^{2}R{\square }^{-2}R$ model of non-local gravity
• Dark Energy Interacting with Dark Matter in Classical Einstein and Loop Quantum Cosmology
• Phantom fluid wormhole in $f(R,T)$ gravity
• Tracking Quintessence Would Require Two Cosmic Coincidences
• The transition of equation of state of effective dark energy in the DGP model with bulk contents
• Challenging matter creation models in the phantom divide
• Stability of accelerating cosmology in two scalar-tensor theory: Little Rip versus de Sitter
• Bouncing universe with the non-minimally coupled scaler field and its reconstructing
• Two-fluid matter-quintessence FLRW models: energy transfer and the equation of state of the universe
• Dark-Energy Dynamics Required to Solve the Cosmic Coincidence
• Evolution of Primordial Black Holes in a radiation and phantom energy environment
• Constraining viscous dark energy models with the latest cosmological data
• The conformal status of $\omega =-3/2$ Brans-Dicke cosmology
• The Accelerated Acceleration of the Universe
• Phantom Inflation in Little Rip
• A note on Harada's Conformal Killing gravity
• Nonlinear bulk viscosity and the stability of accelerated expansion in FRW spacetime
• Probing dark energy models with extreme pairwise velocities of galaxy clusters from the DEUS-FUR simulations
• Cosmology with a new f(R) gravity model in Palatini formalism
• Tidal heating of black holes and exotic compact objects on the brane
• Interacting varying Ghost Dark energy models in General Relativity
• Dark Energy and Dark Matter unification via superfluid Chaplygin gas
• Reconstructing generalized ghost condensate model with dynamical dark energy parametrizations and observational datasets
• Dark energy from bulk matter
• Interacting Dark Energy in Hořava-Lifshitz Cosmology
• Variable G correction to statefinder parameters of dark energy
• The arrow of time: from universe time-asymmetry to local irreversible processes
• Modified Brans-Dicke cosmology with matter-scalar field interaction
• Friedmann-like universes with weak torsion: a dynamical system approach
• Towards the Quantization of Eddington-inspired-Born-Infeld Theory
• Cosmological evolution, future singularities, Little Rip and Pseudo-Rip in viable f(R) theories and their scalar-tensor counterpart
• Constraining the cosmological model of modified $f(Q)$ gravity: Phantom dark energy and observational insights
• Static spacetimes haunted by a phantom scalar field: classification and global structure in the massless case
• Null Energy Condition Violation and Classical Stability in the Bianchi I Metric
• Grand Rip and Grand Bang/Crunch cosmological singularities
• Power-law Parameterized Quintessence Model
• Observational constraints on phantom power-law cosmology
• Quasinormal modes of black holes absorbing dark energy
• Observational Constraints with Recent Data on the DGP Modified Gravity
• Thermodynamics of a Schwarzschild Black Hole in Phantom Cosmology with Entropy Corrections
• Exploring the Sharma-Mittal HDE models with different diagnostic tools
• Cosmological dynamics with non-minimally coupled scalar field and a constant potential function
• Extended Phase Space Analysis of Interacting Dark Energy Models in Loop Quantum Cosmology
• Wormholes in de Sitter branes
• The flatness problem and $\Lambda$
• Future singularities if the universe underwent Starobinsky inflation in the past
• Bounce Universe Induced by an Inhomogeneous Dark Fluid Coupled with Dark Matter
• A divergence-free parametrization for dynamical dark energy
• Bayesian model selection on Scalar $\epsilon$-Field Dark Energy
• Cosmological constraints on nonphantom dynamical dark energy with DESI Data Release 2 Baryon Acoustic Oscillations: A 3$\sigma$+ lensing anomaly
• Unified phantom cosmologies
• Interacting Two-Fluid Viscous Dark Energy Models In Non-Flat Universe
• Redshift drift in a pressure-gradient cosmology
• Crossing the phantom divide in brane cosmology with curvature corrections and brane-bulk energy transfer
• The dynamical viability of scalar-tensor gravity theories
• Generic absence of strong singularities and geodesic completeness in modified loop quantum cosmologies
• Generalized Holographic Dark Energy and its Observational Constraints
• Phantom cosmology as a simple model with dynamical complexity
• Observational Constraints on Dynamical Dark Energy Models
• SNLS data are consistent with acceleration at z=3
• Black Holes in Bulk Viscous Cosmology
• Dark Energy Accretion onto black holes in a cosmic scenario
• Dynamics of Modified Chaplygin Gas in Brane World Scenario: Phase Plane Analysis
• Cosmological Evolution Across Phantom Crossing and the Nature of the Horizon
• An exponential shape function for wormholes in modified gravity
• How does the Hubble Sphere limit our view of the Universe?
• Uniting cosmological epochs through the twister solution in cosmology with non-minimal coupling
• DESI Dark Energy Time Evolution is Recovered by Cosmologically Coupled Black Holes
• Quantum fields and "Big Rip" expansion singularities
• Exploring the evolution of color-luminosity parameter $\beta$ and its effects on parameter estimation
• Phenomenological Varying Modified Chaplygin Gas with Variable $G$ and $\Lambda$: Toy Models for Our Universe
• Traversable wormholes with logarithmic shape function in f(R, T) gravity
• Phantom-like dark energy from quantum gravity
• Multi-graviton theory from a discretized RS brane-world and the induced cosmological constant
• Inhomogeneous viscous dark fluid coupled with dark matter in the FRW universe
• Bounces, turnarounds and singularities in bimetric gravity
• Two-Fluid Dark Energy Models in Bianchi Type-III Universe with Variable Deceleration Parameter
• Late-time phantom universe in $\mathbf{SO}(1,1)$ dark energy model with exponential potential
• Oxidised cosmic acceleration
• Vector field and rotational curves in dark galactic halos
• Cyclic cosmology in modified gravity
• Phantom Dark Ghost in Einstein-Cartan Gravity
• Generalized interacting Barrow Holographic Dark Energy: cosmological predictions and thermodynamic considerations
• Anthropic versus cosmological solutions to the coincidence problem
• Friedman vs Abel equations: A connection unraveled
• Cosmological model involving an interacting van der Waals fluid
• Will black holes eventually engulf the universe?
• Phenomenological Fluids from Interacting Tachyonic Scalar Fields
• Can phantom transition at $z\sim 1$ restore the Cosmic concordance?
• Holographic kinetic k-essence model
• Thermodynamics and Optical Properties of Phantom AdS Black Holes in Massive Gravity
• A one-parameter formula for testing slow-roll dark energy: observational prospects
• Archimedean-type force in a cosmic dark fluid: III. Big Rip, Little Rip and Cyclic solutions
• Quintessence and phantom dark energy from ghost D-branes
• Thermodynamics and evaporation of perfect fluid dark matter black hole in phantom background
• Temperature Variation in the Dark Cosmic Fluid in the Late Universe
• Dynamics of Interacting Generalized Cosmic Chaplygin gas in Brane-world scenario
• Dark Energy Accretion onto a Black Hole in an Expanding Universe
• Mass-Varying Neutrinos from a Variable Cosmological Constant
• Anisotropic charged dark energy star
• Classical and quantum cosmology of the little rip abrupt event
• Reconstructing the History of Energy Condition Violation from Observational Data
• Quintom evolution in power-law potentials
• General constraints on Horndeski wormhole throats
• Alternative mechanism of avoiding the big rip or little rip for a scalar phantom field
• Late-time acceleration with a scalar field source: Observational constraints and statefinder diagnostics
• Dynamical system analysis for DBI dark energy interacting with dark matter
• Bouncing Universe and phantom crossing in Modified Gravity and its reconstruction
• Vacuum fluctuations in a supersymmetric model in FRW spacetime
• Logarithmic entropy--corrected holographic dark energy with non--minimal kinetic coupling
• Phantom solution in a non-linear Israel-Stewart theory
• Cosmology with variable parameters and effective equation of state for Dark Energy
• Black Holes in the Turbulent Phase of Viscous Rip Cosmology
• A new extended quintessence
• Dynamical Systems Analysis of K-essence Model
• Testing the (generalized) Chaplygin gas model with the Lookback time-Redshift data
• Thermodynamics of phantom energy in the presence of a Reissner-Nordstrom black hole
• Spherical collapse in the extended quintessence cosmological models
• A Lemaitre-Tolman-Bondi cosmological wormhole
• Fixed points and FLRW cosmologies: Flat case
• Power-Law $f(R)$ Gravity Corrected Canonical Scalar Field Inflation
• k-essence in the DGP brane-world cosmology
• Constraints on accelerating universe using ESSENCE and Gold supernovae data combined with other cosmological probes
• Classical and quantum Big Brake cosmology for scalar field and tachyonic models
• Dynamical systems analysis of phantom models
• Thermodynamics of Spinor Quintom
• Constraints on anisotropic properties of the universe in $f(Q,T)$ gravity theory
• Stable super-inflating cosmological solutions in f(R)-gravity
• Ricci Dark Energy in braneworld models with a Gauss-Bonnet term in the bulk
• Cosmological test on viscous bulk models using Hubble Parameter measurements and type Ia Supernovae data
• A Unified Model of Phantom Energy and Dark Matter
• Effective Dark Energy Models and Dark Energy Models with Bounce in frames of $F(T)$ Gravity
• Comparison of Frames: Jordan vs Einstein Frame for a Non-minimal Dark Energy Model
• Spherically symmetric wormhole solutions in a general anisotropic matter field
• Brane Cosmology with a Non-Minimally Coupled Bulk-Scalar Field
• Future singularity avoidance in phantom dark energy models
• Observational constraints on a generalized equation of state model
• Exploring Universe acceleration through observational constraints via Hubble parameter reconstruction
• A comprehensive parametrization approach for the Hubble parameter in scalar field dark energy models
• Equivalence of $f(Q)$ cosmology with quintom-like scenario: the phantom field as effective realization of the non-trivial connection
• Kick it like DESI: PNGB quintessence with a dynamically generated initial velocity
• Future dynamics in f(R) theories
• Quantum corrected thermodynamics of nonlinearly charged BTZ black holes in massive gravity's rainbow
• Testing the interaction model with cosmological data and gamma-ray bursts
• Effects of modified gravity on the turnaround radius in cosmology
• Age of the Universe in the Cardassian Model
• Parameterizing and Measuring Dark Energy Trajectories from Late-Inflatons
• Geometrical Diagnostics for Generalized Chaplygin Gas
• Exponential Cardassian Universe
• Networks of cosmological histories, crossing of the phantom divide line and potentials with cusps
• Can universe exit from phantom inflation due to gravitational back reaction?
• A new pressure-parametrization unified dark fluid model
• Inter-universal entanglement in a cyclic multiverse
• Holographic dark energy with the sign-changeable interaction term
• Traversable holographic dark energy wormholes constrained by astronomical observations
• Cosmological models in scalar tensor theories of gravity and observations: a class of general solutions
• Singular deformations of nearly $R^2$ inflation potentials
• Transient Crossing of Phantom divide line $w_{\Lambda }=-1$ under Gauss-Bonnet interaction
• Scalar-tensor theory with Lagrange multipliers: a way of understanding the cosmological constant problem, and future singularities
• Attractor Solution in Coupled Yang-Mills Field Dark Energy Models
• Asymptotic behavior of w in general quintom model
• Rip/singularity free cosmology models with bulk viscosity
• Partial rip scenario - a cosmology with a growing cosmological term
• Anisotropic power-law inflation in a two-scalar-field model with a mixed kinetic term
• Dynamical System Analysis for a phantom model
• Spherical accretion by normal and phantom Einstein--Maxwell--dilaton black holes
• $f(R)$ quantum cosmology: avoiding the Big Rip
• Density preturbations in a finite scale factor singularity universe
• Dissipative Universe-Inflation with Soft Singularity
• Sounds of instability from generalized QCD ghost dark energy
• Isocurvature Perturbations of Dark Energy and Dark Matter from the Swampland Conjecture
• Cosmological aspects of $f(R,T)$ gravity in a simple model with a parametrization of $q$
• The Gravitational Horizon for a Universe with Phantom Energy
• Logarithmic corrected $F(R)$ gravity in the light of Planck 2015
• A Review of Stable, Traversable Wormholes in f (R) Gravity Theories
• Inflessence: a phenomenological model for inflationary quintessence
• $w_d=-1$ in interacting quintessence model
• Dark energy and supermassive black holes
• Little Rip cosmological models with time-dependent equation of state
• No evidence for dynamical dark energy in two models
• Proper Matter Collineations of Plane Symmetric Spacetimes
• Chaplygin gas may prevent big trip
• A study of phantom scalar field cosmology using Lie and Noether symmetries
• Phantom Instability of Viscous Dark Energy in Anisotropic Space-Time
• Brane Cosmology with the Chameleon Scalar Field in Bulk
• Extended $\Lambda$CDM model and viscous dark energy: A Bayesian analysis
• Age Problem in Lemaitre-Tolman-Bondi Void Models
• Parametrization of Tachyon Field
• Observational Constraints on a Variable Dark Energy Model
• The Abnormally Weighting Energy Hypothesis: the Missing Link between Dark Matter and Dark Energy
• Doomsdays in a modified theory of gravity: A classical and a quantum approach
• Cosmological models in scale-independent energy-momentum squared gravity
• A model-independent method with phantom divide line crossing in Weyl-type $f(Q,T)$ gravity
• Modelling Non-Linear Effects of Dark Energy
• Interaction of divergence-free deceleration parameter in Weyl-type $f(Q,T)$ gravity
• Equation-of-state formalism for dark energy models on the brane and the future of brane universes
• The Evolution of the Cosmic Microwave Background
• On Derrick's theorem in curved spacetime
• Oscillating Universe from inhomogeneous EoS and coupled dark energy
• Dynamical system analysis of cosmological evolution in the Aether scalar tensor theory
• Phantom universe from CPT symmetric QFT
• Sudden singularities in generalized hybrid metric-Palatini cosmologies
• Cosmological evolution with quadratic gravity and nonideal fluids
• General dynamical properties of cosmological models with nonminimal kinetic coupling
• Perturbations for transient acceleration
• Model-independent cosmological inference after the DESI DR2 data with improved inverse distance ladder
• Nonlinear Magnetically Charged Black Holes with Phantom Global Monopoles: Thermodynamics, Geodesics, Quasinormal Modes, and Grey-Body Factors
• Cosmological milestones and energy conditions
• Phantom Inflation with A Steplike Potential
• Reconstructing the properties of dark energy from recent observations
• Phantom energy dominated universe as a transient stage in $f(R)$ cosmology
• Cosmological constraints on the generalized holographic dark energy
• Static spacetimes haunted by a phantom scalar field III: asymptotically (A)dS solutions
• COBE-DMR-Normalized Dark Energy Cosmogony
• Dark energy, curvature, and cosmic coincidence
• Latest data constraint of some parameterized dark energy models
• Scrutinizing the Cosmological Constant Problem and a possible resolution
• Cosmic expansion with matter creation and bulk viscosity
• Cosmological models with squared trace in modified gravity
• Inhomogeneous viscous fluids in FRW universe
• Viscosity-Induced Crossing of the Phantom Divide in the Dark Cosmic Fluid
• Power-law entropy-corrected HDE and NADE in Brans-Dicke cosmology
• Reconstructing Dark Energy Potentials From Parameterized Deceleration Parameters
• Delta-gravity and Dark Energy
• Chameleon Cosmology Model Describing the Phantom Divide Line Crossing
• Cosmology with Negative Absolute Temperatures
• Stable phantom energy traversable wormhole models
• Geodesics of McVittie Spacetime with a Phantom Cosmological Background
• Constructing warm inflationary model in brane-antibrane system
• Emerging the dark sector from thermodynamics of cosmological systems with constant pressure
• Crossing the phantom divide line in the Holographic dark energy model in a closed universe
• The Halo Spin Transition as a Probe of Dark Energy
• Global dynamics in Einstein-Gauss-Bonnet scalar field cosmology with matter
• Observing other universe through ringholes and Klein-bottle holes
• Crossing the cosmological constant line in a dilatonic brane-world model with and without curvature corrections
• The fate of bound systems through Sudden Future Singularities
• Gradient expansion(s) and dark energy
• Charged particle dynamics in the surrounding of Schwarzschild anti-de Sitter black hole with topological defect immersed in an external magnetic field
• Viscous Modified Gravity on a RS Brane Embedded in AdS5
• A thermodynamic characterization of future singularities?
• Scalar field cosmological models with finite scale factor singularities
• Classical and quantum bicosmology with noncommutativity
• Phantom Cosmology with Non-minimally Coupled Real Scalar Field
• Cosmological Models Coupled with Dark Matter in a Dissipative Universe
• Constraining scalar-tensor quintessence by cosmic clocks
• Bigger Rip with No Dark Energy
• Qualitative study of perfect-fluid Friedmann-Lema\^ıtre-Robertson-Walker models with a cosmological constant
• More on the holographic Ricci dark energy model: smoothing Rips through interaction effects?
• Axionic extension of the Einstein-aether theory
• Interacting Holographic Dark Energy, the Present Accelerated Expansion and Black Holes
• Dynamics and constraints of the dissipative Liouville cosmology
• An analytic model for the transition from decelerated to accelerated cosmic expansion
• Statefinder Parameters for Five-Dimensional Cosmology
• New mechanism to cross the phantom divide
• Bouncing cosmologies via modified gravity in the ADM formalism: Application to Loop Quantum Cosmology
• The phase space analysis of modified gravity (MOG)
• Accelerating Hilbert-Einstein universe without dynamic dark energy
• Generalized Logarithmic Equation of State in Classical and Loop Quantum Cosmology Dark Energy-Dark Matter Coupled Systems
• A critical assessment of some inhomogeneous pressure Stephani models
• Almost co-Kähler manifolds and $(m,\rho )$-quasi-Einstein solitons
• Finite time future singularities in the interacting dark sector
• Lagrangian reconstruction of Barrow holographic dark energy in interacting tachyon model
• Brane-like singularities with no brane
• Late Time Acceleration of the 3-Space in a Higher Dimensional Steady State Universe in Dilaton Gravity
• Scalar perturbations and the possible self-destruction of the phantom menace
• Scalar tensor Horndeski models: simple cosmological applications
• Universe Evolution in a 5D Ricci-flat Cosmology
• Einstein static universe on the brane supported by extended Chaplygin gas
• Characterizations of generalized Robertson-Walker spacetimes concerning gradient solitons
• Testing for a Super-Acceleration Phase of the Universe
• The End of Cosmic Growth
• Quantisation of the holographic Ricci dark energy model
• Interacting agegraphic quintessence dark energy in non-flat universe
• Impacts of different SNLS3 light-curve fitters on cosmological consequences of interacting dark energy models
• Is Thick Brane Model Consistent with the Recent Observations?
• Sub-Quantum Dark Energy
• Nonminimal Einstein-Maxwell-Vlasov-axion model
• Statefinder parameters for quantum effective Yang-Mills condensate dark energy model
• Effects of a time-varying color-luminosity parameter $\beta$ on the cosmological constraints of modified gravity models
• Interacting entropy-corrected holographic Chaplygin gas model
• Classifying the Future of Universes with Dark Energy
• Quasi-Rip and Pseudo-Rip Universes Induced by the Fluid Inhomogeneous Equation of State
• The Most Probable Size of the Universe
• Constraining H0 in General Dark Energy Models from Sunyaev-Zeldovich/X-ray Technique and Complementary Probes
• Thomson scattering: One rate to rule them all
• A short survey of matter-antimatter evolution in the primordial universe
• Embedding of FRW Cosmology in DGP Scenario with a Non-Minimally Coupled Scalar Field on the Brane
• Determining cosmological parameters from X-ray measurements of strong lensing clusters
• Discrete symmetries and general relativity, the dark side of gravity
• Thermodynamical properties of dark energy with the equation of state
• Viscous Dark Energy Models with Variable G and Lambda
• Variable G and $\Lambda$: scalar-tensor versus RG-improved cosmology
• Studying the Intervention of an Unusual Term in $f(T)$ Gravity via Noether Symmetry
• Cosmological constraints on unifying Dark Fluid models
• Interacting Viscous Dark Energy in Bianchi Type-I Universe
• Electromagnetic waves in an axion-active relativistic plasma non-minimally coupled to gravity
• Galaxy clusters and structure formation in quintessence versus phantom dark energy universe
• Constraining Alternative Gravity Theories Using The Solar Neutrino Problem
• An expanding 4D universe in a 5D Kaluza-Klein cosmology with higher dimensional matter
• Novel traversable wormhole in General Relativity and Einstein-Scalar-Gauss-Bonnet theory supported by nonlinear electrodynamics
• Vainshtein Screening in Bimetric Cosmology
• Singular Accelerated Evolution in Massive $F(R)$ Bigravity
• Cosmological constraints on holographic dark energy models under the energy conditions
• Hubble distancing: Focusing on distance measurements in cosmology
• Exact Scalar-Tensor Cosmological Solutions via Noether Symmetry
• Initial directional singularity in inflationary models
• Interaction between modified Chaplygin gas and ghost dark energy in presence of extra dimensions
• Cosmological constraints from low-redshift data
• Friedmann equations in the Codazzi parametrization of Cotton and extended theories of gravity and the Dark Sector
• Singularity formation in asymptotically safe cosmology with inhomogeneous equation of state
• Expanding Universe: slowdown or speedup?
• Reconstruction of $5D$ Cosmological Models From Equation of State of Dark Energy
• What kind of science is cosmology?
• Interacting Ghost Dark Energy in Complex Quintessence Theory
• Quantum driven Bounce of the future Universe
• Spinning particle orbits around a black hole in an expanding background
• Dynamical description of a quintom cosmological model nonminimally coupled with gravity
• Galileons, phantom fields, and the fate of the Universe
• Twister quintessence scenario
• The Integrated Sachs-Wolfe Effect in Time Varying Vacuum Model
• First comprehensive constraints on the Finslerian models using cosmological observations
• Dynamical dark energy models -- dynamical system approach
• Big Bang Singularity Resolution In Quantum Cosmology
• Relic gravitational waves and the generalized second law
• Cosmologies from higher-order string corrections
• Quintom fields from chiral K-essence cosmology
• Complex Scalar Field Reheating and Primordial Black Hole production
• On Isotropic Turbulence in the Dark Fluid Universe
• The Long-Term Future of Space Travel
• Inference for the dark energy equation of state using Type IA supernova data
• Phantom Accretion by Black Holes and the Generalized Second Law of Thermodynamics
• Phantom cosmology as a scattering process
• Compact astrophysical objects in modified gravity
• Quintom dark energy in DGP braneworld cosmology
• Quantum cosmic models and thermodynamics
• Little Rip and Pseudo Rip Phenomena from Coupled Dark Energy
• Holographic dark energy with time depend gravitational constant in the non-flat Ho$\check{r}$ava-Lifshitz cosmology
• The classical and quantum fate of the Little Sibling of the Big Rip in $f(R)$ cosmology
• Static spacetimes haunted by a phantom scalar field II: dilatonic charged solutions
• Relativistic Viscous Universe Models
• Observational constraints on finite scale factor singularities
• Role of higher -dimensional evolving wormholes in the formation of a big rip singularity
• Current lookback time-redshift bounds on dark energy
• Type V singularities in non-standard cosmological backgrounds
• Parametrizing the transition to the phantom epoch with Supernovae Ia and Standard Rulers
• Interacting holographic dark energy models: A general approach
• A dark energy multiverse
• Comparing teh holographic principle inspired dark energy models
• Statefinder Parameter for Varying G in Three Fluid System
• Inhomogeneous Dark Fluid and Dark Matter, Leading to a Bounce Cosmology
• Observational constraints on the braneworld model with brane-bulk energy exchange
• A Finite Quantum Gravity Field Theory Model
• Slow rolling, inflation and quintessence
• Conformal Killing cosmology -- Geometry, dark sector, growth of structures, and big rip
• Quintessence and (Anti-)Chaplygin Gas in Loop Quantum Cosmology
• Gravitational Quasinormal Modes of Regular Phantom Black Hole
• On the Consistency of the Wheeler-DeWitt Equation in the Quantized Eddington-inspired Born-Infeld Gravity
• Particle decay in expanding Friedmann-Robertson-Walker universes
• Conceptual problems in detecting the evolution of dark energy when using distance measurements
• Interacting new agegraphic Phantom model of dark energy in non-flat universe
• Rip Brane Cosmology from 4d Inhomogeneous Dark Fluid Universe
• Crossing the Phantom Divide in Extended Dvali-Gabadadze-Porrati Gravity
• Cyclic multiverses
• Phantom without phantom or how the PT symmetry saves us from the Big Rip
• Dark energy constraint on equation of state parameter in the Weyl type $f(Q,T)$ gravity
• Statefinder Diagnostic for Phantom Model with $V(\varphi )=V_0\exp (-\lambda {\varphi }^2)$
• Gravitational Origin of Phantom Dark Energy and Late Cosmic Acceleration
• Cosmologies with variable parameters and dynamical cosmon: implications on the cosmic coincidence problem
• Stable phantom-divide crossing in two scalar models with matter
• Spatial Periodicity of Galaxy Number Counts, CMB Anisotropy, and SNIa Hubble Diagram Based on the Universe Accompanied by a Non-Minimally Coupled Scalar Field
• Asymptotically safe phantom cosmology
• Fluid inflation with brane correction
• Sudden singularities in semiclassical gravity
• The Big Bang could be anisotropic. The case of Bianchi I model
• The little rip in classical and quantum $f(R)$ cosmology
• Helmoltz problem for the Riccati equation from an analogous Friedmann equation
• Polynomial $f(R)$ Palatini cosmology -- dynamical system approach
• Variations of the fine-structure constant $\alpha$ in exotic singularity models
• Smooth crossing of $w_{\Lambda }=-1$ line in a single scalar field model
• Tilt and phantom cosmology
• Holographic dilatonic model of dark energy
• Multiple $\Lambda$CDM cosmology with string landscape features and future singularities
• Redshift drift test of exotic singularity universes
• Wiggly cosmic strings accrete dark energy
• First cosmological constraints on the Superfluid Chaplygin gas model
• Warm inflation with non-comoving scalar field and radiation fluid
• Scaling Dark Energy in a Five-Dimensional Bouncing Cosmological Model
• Chameleon mechanism with a new potential
• No "big trips" for the universe
• Wave dynamics of phantom scalar perturbation in the background of Schwarzschild black hole
• First-order formalism for the quintom model of dark energy
• Phantom Energy with Variable G and Lambda
• Evolution of magnetic component in Yang-Mills condensate dark energy models
• Interacting holographic tachyon model of dark energy
• Halo Counts-in-cells for Cosmological Models with Different Dark Energy
• Classical and quantum $f(R)$ cosmology: The big rip, the little rip and the little sibling of the big rip
• Tachyon model of Tsallis holographic dark energy
• Tsallis holographic dark energy under Complex form of Quintessence model
• Cosmological Boundary Flux Parameter
• Complete classification of Friedmann-Lemaître-Robertson-Walker solutions with linear equation of state: parallelly propagated curvature singularities for general geodesics
• Reference level of the vacuum energy density of the Universe and astrophysical data
• Interacting Agegraphic Dark Energy Model in DGP Braneworld Cosmology: Dynamical System Approach
• Viscous Accelerating Universe with Non-linear and Logarithmic Equation of State Fluid
• Cosmological Analysis of Modified Holographic Ricci Dark Energy in Chern-Simons Modified Gravity
• Infrared divergences for free quantum fields in cosmological spacetimes
• $K$-essence model from the mechanical approach point of view: coupled scalar field and the late cosmic acceleration
• Testing gravity of a regular and slowly rotating phantom black hole by quasi-periodic oscillations
• Cosmology in time asymmetric extensions of general relativity
• A 6D standing-wave Braneworld with normal matter as source
• Quintessential and phantom power-law solutions in scalar tensor model of dark energy
• Interacting Generalised Cosmic Chaplygin gas in Loop quantum cosmology: A singularity free universe
• Phantom energy accretion and primordial black holes evolution in Brans-Dicke theory
• Observational constraints on Chaplygin cosmology in a braneworld scenario with induced gravity and curvature effect
• Interacting agegraphic dark energy models in phase space
• Bohmian Quantization of the Big Rip
• Remarks on generalized scalar-tensor models of dark energy
• An Alternative Approach to Holographic Dark Energy
• Transition from decelerated to accelerated cosmic expansion in braneworld universes
• Accelerated expansion from braneworld models with variable vacuum energy
• Role of the cosmological constant in the holographic description of the early universe
• Testing a dissipative kinetic k-essence model
• The Hubble Rate Trouble: An Effective Field Theory of Dark Matter
• A Universe with a generalized ghost dark energy and Van der Waals fluid interacting with a fluid
• Quintessence models with an oscillating equation of state and their potentials
• Knot Universes in Bianchi Type I Cosmology
• Ghost dark energy with sign-changeable interaction term
• Scalar field exact solutions for non-flat FLRW cosmology: A technique from non-linear Schrödinger-type formulation
• Phantom-Like Behavior of a DGP-Inspired Scalar-Gauss-Bonnet Gravity
• Late time cosmic acceleration from natural infrared cutoff?
• Generalized Model of Interacting Dark Energy and Dark Matter : Phase Portrait Analysis of Evolving Universe
• A primer on problems and prospects of dark energy
• Israel-Stewart approach to viscous dissipative extended holographic Ricci dark energy dominated universe
• The accelerated scaling attractor solution of the interacting agegraphic dark energy in Brans-Dicke theory
• LRS Bianchi I model with constant deceleration parameter
• The Coincidence Problem and the Swampland Conjectures in the Ijjas-Steinhardt Cyclic Model of the Universe
• Dynamical System Analysis of a Dirac-Born-Infeld Model : A Center Manifold Perspective
• A new logotropic model based on a complex scalar field with a logarithmic potential
• Effect of low anisotropy on cosmological models by using supernova data
• Eternal Universes
• Cosmological model with variable vacuum pressure
• Generalized Model for $\Lambda$-Dark Energy
• Phantom-like effects in asymmetric brane embedding with induced gravity and the Gauss-Bonnet term in the Bulk
• On the dynamics of exotic matter: towards creation of Perpetuum Mobile of third kind
• Tachyonic (phantom) power-law cosmology
• Cosmology in Delta-Gravity
• Probing Ricci dark energy model with perturbations by using WMAP seven-year cosmic microwave background measurements, BAO and Type Ia supernovae
• Classical and semi-classical energy conditions
• Turbulence Accelerating Cosmology from an Inhomogeneous Dark Fluid
• Entropic force, running gravitational coupling and future singularities
• Reconstruction of the equation of state for the cyclic universes in homogeneous and isotropic cosmology
• Universal procedure to cure future singularities of dark energy models
• Ray tracing the integrated Sachs-Wolfe effect through the light cones of the Dark Energy Universe Simulation -- Full Universe Runs
• Dark Energy and Cosmological Horizon Thermal Effects
• Kinetic Axion Dark Matter in String Corrected $f(R)$ Gravity
• The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements
• Spacetime averaging of exotic singularity universes
• Anisotropic Born-Infeld-f(R) Cosmologies
• Two-field cosmological models and large-scale cosmic magnetic fields
• Phantom shell around black hole and global geometry
• I. Linear Interacting Dark Energy: Analytical Solutions and Theoretical Pathologies
• Topological Mod(A)Max AdS black holes
• Forecasting Super-Sample Covariance in Future Weak Lensing Surveys with SuperSCRAM
• Flows into inflation: An effective field theory approach
• Stress testing the dark energy equation of state imprint on supernova data
• Phantom of the Hartle-Hawking instanton: connecting inflation with dark energy
• Cosmological implications of different baryon acoustic oscillation data
• Are we seeing the beginnings of Inflation?
• Phantom attractors in Kinetic Gravity Braiding theories: a dynamical system approach
• Scenario of Accelerating Universe from the Phenomenological Λ- Models
• Realistic Equations of State for the Primeval Universe
• What have we learned from observational cosmology ?
• Transition between phantom and non-phantom phases with time dependent cosmological constant and Cardy-Verlinde formula
• The Dynamical Evolution of 3-Space in a Higher Dimensional Steady State Universe
• Nonsingular Chaplygin gas cosmologies in universes connected by wormhole
• New futures for cosmological models
• Non-minimal coupling of the phantom field and cosmic acceleration
• Hybrid Chaplygin gas and phantom divide crossing
• Aller guten Dinge sind drei: Cosmology with three interacting spin-2 fields
• Stability analysis of agegraphic dark energy in Brans-Dicke cosmology
• Cosmology In Terms Of The Deceleration Parameter. Part II
• Late-time-accelerated expansion arisen from gauge fields in an anisotropic background and a fruitful trick for Noether's approach
• Non-local scalar fields inflationary mechanism in light of Planck $2013$
• Quantum induced w = -1 crossing of the quintessence and phantom models
• 4D static solutions with interacting phantom fields
• Normal DGP in varying speed of light cosmology
• Energy-Momentum Distribution in General Relativity for a Phantom Black Hole Metric
• Structure formation in clustering DBI dark energy model with constant sound speed
• Simultaneous baldness and cosmic baldness and Kottler spacetime
• Power-law expansion cosmology in Schrödinger-type formulation
• Evolutionary quantum cosmology in a gauge-fixed picture
• Tachyon field inspired dark energy and supernovae constraints
• Time variable cosmological constant of holographic origin with interaction in Brans-Dicke theory
• Cosmological observations in non-local $F(R)$ cosmology
• Reconstruction of Five-dimensional Bounce cosmological Models From Deceleration Factor
• On Friedmann-Lema\^ıtre-Robertson-Walker cosmologies in non-standard gravity
• Vacuum energy sequestering and cosmic dynamics
• Constraining Parameters of Generalized Cosmic Chaplygin Gas in Loop Quantum Cosmology
• Dynamical evolution of phantom scalar perturbation in the background of Schwarzschild black String spacetime
• Classical and quantum Big Brake cosmology for scalar field and tachyonic models
• Cyclic Cosmology from the Little Rip
• Sub-horizon evolution of cold dark matter perturbations through dark matter-dark energy equivalence epoch
• Fate of an Accretion Disc around a Black Hole when both the Viscosity and Dark Energy is Effecting
• A cosmological model describing the early inflation, the intermediate decelerating expansion, and the late accelerating expansion by a quadratic equation of state
• Look beyond additivity and extensivity of entropy for black hole and cosmological horizons
• Scalar Dark Energy Models and Scalar-Tensor Gravity: Theoretical Explanations for the Accelerated Expansion of Present Universe
• Cosmology with higher-derivative matter fields
• Testing the phenomenological interacting dark energy model with gamma-ray bursts and Pantheon+ type Ia supernovae
• New perspectives on future rip scenarios with holographic dark energy
• Effects of a Late Gravitational Transition on Gravitational Waves and Anticipated Constraints
• Future deceleration due to backreaction in a Universe with multiple inhomogeneous domains
• "Expansion" around the vacuum: how far can we go from Lambda?
• Dark Energy and Dark Matter From Hidden Symmetry of Gravity Model with a Non-Riemannian Volume Form
• Reexamining generalized Chaplygin gas with the sign-changeable interaction
• Cosmological evolution of generalized non-local gravity
• Dynamics of k-essence in loop quantum cosmology
• Structure formation and CMBR anisotropy spectrum in the inflessence model
• Cosmological expansion and local systems: a Lemaître-Tolman-Bondi model
• Dynamics of the self-interacting chameleon cosmology
• From Cosmos to Intelligent Life: The Four Ages of Astrobiology
• Euclidean wormholes with Phantom field and Phantom field accompanied by perfect fluid
• De-Sitter-spacetime instability from a nonstandard vector field
• Chameleon gravity on cosmological scales
• Velocity Measurements in Some Classes of Alternative Gravity Theories
• How effective is new variable modified Chaplygin gas to play the role of dark energy- A dynamical system analysis in RS II Brane model
• Quintessence and phantom emerging from the split-complex field and the split-quaternion field
• A cosmological model of the early universe based on ECG with variable $\Lambda$-term in Lyra geometry
• Tachyon field non-minimally coupled to massive neutrino matter
• Bouncing Universe with a Nonminimally Coupled Scalar Field on a Moving Domain Wall
• What if gravity becomes really repulsive in the future?
• Phantom Dirac-Born-Infeld Dark Energy
• Is a Topology Change After a Big Rip Possible?
• Wave asymptotics at a cosmological time-singularity: classical and quantum scalar fields
• Non-exotic conformal structure of weak exotic singularities
• Phantom dark energy and cosmological solutions without the Big Bang singularity
• Spacetime Singularities in Generalized Brans-Dicke Theories
• The unphysical character of dark energy fluids
• Distinguishing freezing and thawing dark energy models through measurements of the fine-structure constant
• Generalized unimodular gravity in Friedmann and Kantowski-Sachs universes
• Black Hole Dynamics in Power-law based Metric $f(R)$ Gravity
• Perturbations and the Future Conformal Boundary
• Non-exotic wormholes in 4-D Einstein-Gauss-Bonnet gravity
• Cosmological models based on a complex scalar field with a power-law potential associated with a polytropic equation of state
• The Fate of the Universe Evolution in the Quadratic Form of Ricci-Gauss-Bonnet Cosmology
• Crossing of the Cosmological Constant Boundary - an Equation of State Description
• Phantoms and strange attractors in cosmology
• Variable Chaplygin Gas: Constraints from Supernovae, GRB and Gravitational Wave Merger Events
• Accelerating Universe from Extra Spatial Dimension
• Little Rip, Pseudo Rip and bounce cosmology with generalized equation of state in non-standard backgrounds
• Probing the Dynamics of Gaussian Dark Energy Equation of State Using DESI BAO
• One Extension to Explain Them All, One Scale-Invariant Spectrum to Test Them All, and in One Model Bind Them
• Exploring parametrized dark energy models in interacting scenario
• Scalar field dark energy: Insights into cosmological evolution and black hole accretion
• Dynamical System Analysis of a Three Fluid Cosmological Model : An Invariant Manifold approach
• Observational constraints on the unified dark matter and dark energy model based on the quark bag model
• Investigation of Bouncing Universe and Phantom Crossing in Modified Gravity Coupled with Weyl Tensor and its Reconstruction
• Interacting Three Fluid System and Thermodynamics of the Universe Bounded by the Event Horizon
• Investigating Dark Energy with Black Hole Binaries
• Generalized Puisieux series expansion for cosmological milestones
• Dark Energy with a Fine-toothed Comb
• High-Speed Collapse of a Hollow Sphere of Type I Matter
• Statefinder analysis of the superfluid Chaplygin gas model
• Black Holes in Accelerated Universe
• Role of generalized Ricci dark energy on Chameleon field in the emergent universe
• How Much NEC Breaking Can the Universe Endure?
• Quantum effects from particle production on background evolution and Cardy-Verlinde formula in f(R) gravity
• Is a pole type singularity an alternative to inflation?
• Algebraic expansions for curvature coupled scalar field models
• Different faces of the phantom
• Transient dark energy, cosmological constant boundary crossing and dark energy $w(z)$ data fits
• A gracious exit from the matter-dominated phase in a quantum cosmic phantom model
• A varying Dark Energy effective speed of sound parameter in the phantom Universe
• Interacting non-minimally coupled canonical, phantom and quintom models of holographic dark energy in non-flat universe
• Cosmic Evolution with Early and Late Acceleration Inspired by Dual Nature of the Ricci Scalar Curvature
• The coincidence problem in $f(R)$ gravity models
• A Modified FRW Metric to Explain the Cosmological Constant
• Variable $G$ Correction for Dark Energy Model in Higher Dimensional Cosmology
• Phantom dark energy from scalar$-$torsion coupling
• Brane cosmology from observational surveys and its comparison with standard FRW cosmology
• A scalar field dark matter model and its role in the large scale structure formation in the Universe
• Constraining Dynamical Dark Energy Models through the Abundance of High-Redshift Supermassive Black Holes
• Interacting Viscous Dark Energy in Bianchi Type-III Universe
• Eternal vs singular observers in interacting dark energy-dark matter models
• $w$-singularities in cosmological models
• Phantom expansion with non-linear Schrödinger-type formulation of scalar field cosmology
• Cosmological implications of Born-Infeld-$f(R)$ gravity
• Future soft singularities, Born-Infeld-like fields and particles
• Long-wavelength non-linear perturbations of a complex scalar field
• Dynamical system analysis in multiscalar-torsion cosmology
• Cosmological Singularities in Conformal Weyl Gravity
• Cosmological future singularities in massive gravity and massive bigravity
• $\Lambda$CDM cosmology with a quiescent anisotropy in a higher dimensional steady state universe
• Dynamics of holographic dark energy with apparent-horizon cutoff and non-minimal derivative coupling gravity in non-flat FLRW universe
• NEC violation in $f(\bar{R},\bar{T})$ gravity in the context of a non-canonical theory via modified Raychaudhuri equation
• Type V singularities with inhomogeneous equations of state
• Impact of dark energy on the equation of state in light of the latest cosmological data
• A Modified Dynamical Model of Cosmology I. Theory
• Slow-roll, acceleration, the Big Rip and WKB approximation in NLS-type formulation of scalar field cosmology
• Constraints on Deflation from the Equation of State of Dark Energy
• The Big Trip and Wheeler-DeWitt equation
• Entropy of cosmological black holes and generalized second law in phantom energy-dominated universe
• Observational constraints on a Yang-Mills condensate dark energy model
• Reconstruction of a Deceleration Parameter from the Latest Type Ia Supernovae Gold Dataset
• Cosmological analogies, Lagrangians, and symmetries for convective-radiative heat transfer
• Cosmological Evolution of Viscous Dark Energy in f(Q,C) Gravity: Two-Fluid Approach
• Rips and regular future scenario with Holographic Dark Energy: A comprehensive look
• Comparison of Supernovae datasets Constraints on Dark Energy
• Investigating Evolving Wormholes in $f(R,T)$ Gravity
• Non-singular flat universes in braneworld and Loop Quantum Cosmology
• Some characteristics of three exact solutions of Einstein equations minimally coupled to a Quintessence field
• Seeing Darkness: the New Cosmology
• Power Law and Logarithmic Ricci Dark Energy Models in Horava-Lifshitz Cosmology
• Realizing the phantom-divide crossing with vector and scalar fields
• Dynamical System Analysis Of Chameleon Mechanism in Brans-Dicke Scalar-Tensor Model
• An Accelerating Universe without Lambda: Delta~Gravity Using Monte Carlo
• Inflation is the generic feature of phantom field-not the big-rip
• Cosmology: a bird's eye view
• D-bound and Bekenstein bound for McVittie solution surrounded by dark energy cosmological fields
• Analytical considerations about the cosmological constant and dark energy
• Hawking radiation and thermodynamics of dynamical black holes in phantom dominated universe
• The Cosmological Models with Jump Discontinuities
• Cyclic universe due to phantom and quintessence
• Cosmic Acceleration from Causal Backreaction in a Smoothly Inhomogeneous Universe
• Flows into de Sitter space from anisotropic initial conditions: An effective field theory approach
• Exploring the deviation of cosmological constant by a generalized pressure dark energy model
• Evolving wormhole formation in dRGT massive gravity
• Spinor quintom cosmology with intrinsic spin
• The Friedmann equations in deformed Hořava-Lifshitz gravity and Debye model
• Variational symmetries and superintegrability in multifield cosmology
• Observational Constraints on Phantom Crossing DGP Gravity
• On accretion of dark energy onto black- and worm-holes
• Entropic considerations on the Universe and Universe-Black Hole Systems
• Accelerating Universe: Observational Status and Theoretical Implications
• Asymptotic solutions in f(R)-gravity
• Cosmological aspects of a vector field model
• On the necessity of phantom fields for solving the horizon problem in scalar cosmologies
• Cosmological Issues in $F(T)$ Gravity Theory
• $f(R)$ Gravity and Crossing the Phantom Divide Barrier
• Scalar field vs hydrodynamic models in the homogeneous isotropic cosmology
• Noncommutative cosmological models induced by a symplectic formalism coupled to phantom fluids
• Kinematical and dynamical aspects of ghost-matter cosmologies
• Reconstruction of 5D Cosmological Model From Recent Observations
• Cosmology in holographic non-minimal derivative coupling theory: constraints from inflation and variation of gravitational constant
• Quintessence like behavior of symmetric teleparallel dark energy: Linear and nonlinear model
• Big rip in shift-symmetric Kinetic Gravity Braiding theories
• Search for dark energy potentials in quintessence theory
• A novel model of non-singular oscillating cosmology on flat Randall-Sundrum II braneworld
• Quantum Yang-Mills Condensate Dark Energy Models
• Domain Wall and Holographic Dark Energy in $f(Q)$ Theory of Gravity
• Constraints on cosmological parameters and CMB first acoustic peak in conformal Killing gravity
• Holographic bounce cosmological models induced by viscous dark fluid from a generalized non-singular entropy function
• Exploring the expansion of the universe using the Grüneisen parameter
• Cosmic expansion beyond $\Lambda$CDM: Investigating power-law and logarithmic corrections
• Asymptotically Static Universe
• $f(T)$ gravity from holographic Ricci dark energy model with new boundary conditions
• Singularities in inflationary cosmological models
• Three Impossible Theories
• Viscous coupled fluids in terms of a log-corrected equation of state
• Evolving black hole horizons in General Relativity and alternative gravity
• $\Lambda CDM$ periodic cosmology
• Equation of state and singularities in FLRW cosmological models
• Future singularity free accelerating expansion with the modified Poisson brackets
• Interacting vacuum at infinity
• Ray tracing in FLRW flat space-times
• Probing the matter and dark energy sources in a viable Big Rip model of the Universe
• Time variation of the Equation of State for Dark Energy
• Non linear equation of state and effective phantom divide in brane models
• Coincidence Problem in Cyclic Phantom Models of the Universe
• Reconstruction of Cosmological Evolution in the Presence of Extra Dimensions
• Accelerated expansion of a universe containing a self-interacting Bose-Einstein gas
• "All that matter ... in one Big Bang ...," & other cosmological singularities
• Phantom scalar emission in the Kerr black hole spacetime
• A causal viscous cosmology without singularities
• Quantum fluctuations of the compact phase space cosmology
• The role of potential in the ghost-condensate dark energy model
• The presence of a Phantom field in a Randall-Sundrum scenario
• Finite scale factor and future singularities
• Cosmic Acceleration Data and Bulk-Brane Energy Exchange
• Spatially open Friedmann--Robertson--Walker Universe fueled with interacting sources
• Brane World Dynamics and Adiabatic Matter creation
• Coupled fluids model in FRW space-time
• The expanding universe: an introduction
• The Osgood Criterion and Finite-Time Cosmological Singularities
• Scalar field with the source in the form of the stress-energy tensor trace as a dark energy model
• Regularizing future cosmological singularities with varying speed of light
• Dark Energy and Life's Ultimate Future
• Cosmology in $R^2$-gravity: Effects of a Higher Derivative Scalar Condensate Background
• Cuscuton-like contribution to dark energy evolution
• The nature of cosmological singularities in isotropic universes and braneworlds
• Quantum Bias Cosmology: Acceleration from Holographic Information Capacity
• Revisiting cosmological diffusion models in Unimodular Gravity and the $H_0$ tension
• Inflation from entropy
• A pressure parametric dark energy model
• Revisiting Holographic Dark Energy in Cyclic Cosmology
• Vacuum fluctuation of conformally coupled scalar field in FLRW space-times
• Open case for a closed universe
• Rip Cosmology via Inhomogeneous Fluid
• Dynamics of the universe as a "test 3-brane" in a 5D bulk
• Avoiding Big Rip Singularities in Phantom Scalar Field theory with Gauss-Bonnet term
• Late time acceleration in 3-brane Brans-Dicke cosmology
• The frozen vanilla model: Exploring dark sector interactions with delta effective theories
• Observational constraints and differential diagnosis for cosmic evolutionary models
• Dark energy from conformal symmetry breaking
• Weak Gravity Conjecture and Holographic Dark Energy Model with Interaction and Spatial Curvature
• Big rip avoidance via black holes production
• Refined Thermodynamic Analysis of Perfect Fluid Dark Matter Black Holes in a Phantom Background
• Gravity and induced matter on Nearly Kahler Manifolds
• Long-wavelength gravitational waves and cosmic acceleration
• Evolution of the horizons for dark energy universe
• Unifying turnaround-bounce cosmology in a cyclic universe considering a running vacuum model
• Acceleration of the universe in matter dominant era by conformal symmetry breaking
• Statefinder Description in Generalized Holographic and Ricci Dark Energy Models
• A new approach to modified-gravity models
• Generalized Semi-Holographic Universe
• Accretion of Dark Energy Candidates Following Redshift Parametrization Type Equation of State : Horava-Lifshitz Gravity
• A Heuristic Approach to the Far-Future State of a Universe Dominated by Phantom Energy
• Dark energy with oscillatory tracking potential: Observational Constraints and Perturbative effects
• Exploring the Latest Pantheon SNIa Dataset by Using Three Kinds of Statistics Techniques
• K-essential Phantom Energy: Doomsday around the Corner? Revisited
• Parameterization and Reconstruction of Quasi Static Universe
• On rips and cosmological singularities in a universe merging with baby universes
• Phantom cosmology with arbitrary potential: New accelerating scaling attractors
• Dissecting the $H_0$ and $S_8$ tensions with Planck + BAO + supernova type Ia in multi-parameter cosmologies
• Expanding Universe: Thermodynamical Aspects From Different Models
• Brane singularities and their avoidance in a fluid bulk
• Accelerating Universe with binary mixture of bulk viscous fluid and dark energy
• The Cosmological Constant as a Function of Extrinsic Curvature and Spatial Curvature
• Bianchi type-III THDE quintessence model with hybrid expansion law
• Metric Expansion from Microscopic Dynamics in an Inhomogeneous Universe
• Thermodynamics of irreversible particle creation phenomena and its cosmological consequence
• Weyl Curvature Hypothesis in light of Quantum Backreaction at Cosmological Singularities or Bounces
• Phase space of multi-fluid universe in $F(T)$-gravity and some enhancements for the oscillating interaction model
• Stability of Differentially Rotating Disks in $f(T)$ Theory
• Two non-commutative parameters and regular cosmological phase transition in the semi-classical dilaton cosmology
• Exact solutions of the Wheeler-DeWitt equation with ordering term in a dark energy scenario
• Correspondence between modified gravity and 5D Ricci-flat cosmologies
• Bounce and wormholes
• Cosmological Singularities in Brane Gravity
• Canonical Structure and Hidden Symmetries in Scalar Field Cosmology
• Quintessence dark energy model in non-linear $f(Q)$ theory with bulk-viscosity
• Cosmological effect of coherent oscillation of ultralight scalar fields in a multicomponent universe
• The peculiar case of the Viaggiu holographic dark energy
• Forecast constraints on null tests of the $\Lambda$CDM model with SPHEREx
• Agegraphic dark energy from entropy of the anti-de Sitter black hole
• Cosmic anisotropic doomsday in Bianchi type I universes
• A dynamical systems perspective on the thermodynamics of late-time cosmology
• Is Dark Energy Increasing or Decreasing in the Late Universe?
• Game Theory in Cosmology
• Cosmological and astrophysical applications of modified theories of gravity
• Simple generalizations of Anti-de Sitter space-time
• Cosmic expansion history analysis with Hubble parametrization in $Q^n$ gravity
• Generic autonomous system approach to interacting dark energy models
• Apocalypse When? Solar System Constraints on an Imminent Big Rip
• Quantum Quintom Cosmology
• Structure formation in a non-canonical scalar field model of clustering dark energy
• The Nature of Phantom Dark Energy and its Relation to Time Crystals
• Behavior of Friedmann-Lemaitre-Robertson-Walker Singularities
• The long freeze: an asymptotically static universe from holographic dark energy
• Cosmological models based on an asymmetric scalar doublet with kinetic coupling of components. II. Numerical modeling
• Quantum dynamics of the early universe
• Isotropization in the approach to big rip singularities for Cardassian models
• Non-minimally coupled dark fluid in Schwarzschild spacetime
• Brane induced cosmological acceleration and crossing of w_{eff}=-1
• VADER - A Satellite Mission Concept For High Precision Dark Energy Studies
• Viscous effect in the late time evolution of phantom universe
• Cosmological sudden singularities in $f(R,T)$ gravity
• Thermodynamics properties of the dark energy in loop quantum cosmology
• The relation between Geometry and Matter in classical and quantum Gravity and Cosmology
• The cosmological constant from space-time discreteness
• Dark Energy Effects on Charged and Rotating Black Holes
• The Fate of the Accelerating Universe
• Dark Energy Density and IS (Israel-Stewart) Bulk Viscosity Model
• $\Lambda$CDM-like models with future singularities
• Braneworld wormholes supported by astrophysical observations
• Qualitative types of cosmological evolution in hydrodynamic models with barotropic equation of state
• Cosmology in the presence of diffeomorphism-violating, nondynamical background fields
• Geometrical effective actions for a partially massless spin-2 field
• Propagation of gravitational waves in a universe with slowly-changing equation of state
• Criticality and Big Brake singularities in the tachyonic evolutions of closed Friedmann universes with cold dark matter
• Singularities and Soft-Big Bang in a viscous $\Lambda$CDM model
• Thermality versus objectivity: can they peacefully coexist?
• Evolution of decaying particles and decay products in various scenarios for the future expansion of the universe
• Cosmological models with Big rip and Pseudo rip Scenarios in extended theory of gravity
• Singularity formation in radiating star with dark energy background
• Evidence for a disaggregation of the universe
• Phantom "renormalization" of mass of a quantized electric charge
• A preliminary study about gravitational wave radiation and cosmic heat death
• Self-restriction of Gravitational Field and its Role in the Universe
• The problem of what exists
• Inflaton vacuum fluctuations as dark matter and the potential V(phi) as dark energy
• Fermionic quantum cosmology as a framework for resolving type IV singularities
• Eisenhart-Duval lift, Nonlocal Conservation laws and Painlevé Analysis in Scalar field Cosmology
• Non-minimal matter sector couplings in Lorentz-violating gravity: Self-consistent traversable wormholes and quasinormal modes
• How Holographic is the Dark Energy? A Spline Nodal reconstruction approach
• Singularities in loop quantum cosmology
• Evolution and thermodynamics of new holographic dark energy with bulk viscosity in modified $f(R,T)$ gravity
• Limits on the Inferred Hubble Constant Bias from a Local McVittie Gravitational Field
• A Spectrum of Cosmological Rips and Their Observational Signatures
• Finite time pseudo-rip singularity in cosmology
• Breaking Free from the Swampland of Impossible Universes through the DESI Portal
• Observational Constraints and Cosmological Dynamics of Interacting Fractional Holographic Dark Energy in Light of DESI DR2