Properties of singularities in (phantom) dark energy universe

Abstract

The properties of future singularities are investigated in the universe dominated by dark energy including the phantom-type fluid. We classify the finite-time singularities into four classes and explicitly present the models which give rise to these singularities by assuming the form of the equation of state of dark energy. We show the existence of a stable fixed point with an equation of state $w<-1$ and numerically confirm that this is actually a late-time attractor in the phantom-dominated universe. We also construct a phantom dark energy scenario coupled to dark matter that reproduces singular behaviors of the Big Rip type for the energy density and the curvature of the universe. The effect of quantum corrections coming from conformal anomaly can be important when the curvature grows large, which typically moderates the finite-time singularities.

17 pages, 6 figures, references are added, version to appear in Physical Review D

References in corpus (14)

• Cosmological Evolution of a Quintom Model of Dark Energy
• Can dark energy evolve to the Phantom?
• Cosmology with Interaction between Phantom Dark Energy and Dark Matter and the Coincidence Problem
• Consistent modified gravity: dark energy, acceleration and the absence of cosmic doomsday
• What is needed of a tachyon if it is to be the dark energy?
• The Fate of Bound Systems in Phantom and Quintessence Cosmologies
• More General Sudden Singularities
• Geodesic behavior of sudden future singularities
• A unified approach to scaling solutions in a general cosmological background
• Interacting Phantom Energy
• Can we be tricked into thinking that w is less than -1?
• Supernovae constraints on models of dark energy revisited
• Patch dualities and remarks on nonstandard cosmologies
• Quantum fields and "Big Rip" expansion singularities

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• 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?
• Dilaton Coupled Quintessence Model in the $\omega -{\omega }^{\prime }$ Plane
• Born-Infeld Type Phantom Model in the $\omega -{\omega }^{\prime }$ Plane
• Dissipative Universe-Inflation with Soft Singularity
• Density preturbations in a finite scale factor singularity universe
• Dark Energy, Scalar-Tensor Gravity and Large Extra Dimensions
• Reconstructing cosmic acceleration from modified and non-minimal gravity: The Yang-Mills case
• Cosmological aspects of $f(R,T)$ gravity in a simple model with a parametrization of $q$
• A note on the relations between thermodynamics, energy definitions and Friedmann equations
• Viscous Fluids and Gauss-Bonnet Modified Gravity
• Emergent dark energy from unparticles
• Doomsdays in a modified theory of gravity: A classical and a quantum approach
• Oscillating Universe from inhomogeneous EoS and coupled dark energy
• Cosmological perturbations in $F(R)$ gravity
• Universe acceleration in modified gravities: $F(R)$ and $F(T)$ cases
• Crossing the phantom divide with Ricci-like holographic dark energy
• Cosmological models with squared trace in modified gravity
• Phantom universe from CPT symmetric QFT
• Reconstructing the properties of dark energy from recent observations
• Phantom energy dominated universe as a transient stage in $f(R)$ cosmology
• Cosmological evolution with quadratic gravity and nonideal fluids
• Sudden singularities in generalized hybrid metric-Palatini cosmologies
• Linking little rip cosmologies with regular early universes
• Interpretation of $f(\mathsf{R},\mathsf{T})$ gravity in terms of a conserved effective fluid
• Cosmic expansion with matter creation and bulk viscosity
• Gradient expansion(s) and dark energy
• Effect of the Trace Anomaly on the Cosmological Constant
• III. Interacting Dark Energy: Summary of Models, Pathologies, and Constraints
• Crossing the phantom divide line in the Holographic dark energy model in a closed universe
• Crossing the cosmological constant line in a dilatonic brane-world model with and without curvature corrections
• Geodesics of McVittie Spacetime with a Phantom Cosmological Background
• Diagnostic and Comparative Analysis of Dark Energy Models with $q(z)$ Parametrizations
• Future state of the Universe
• Axionic extension of the Einstein-aether theory
• Primordial brusque bounce in Born-Infeld determinantal gravity
• Brane-like singularities with no brane
• A preference for dynamical phantom dark energy using one-parameter model with Planck, DESI DR1 BAO and SN data
• Finite time future singularities in the interacting dark sector
• Lagrangian reconstruction of Barrow holographic dark energy in interacting tachyon model
• More on the holographic Ricci dark energy model: smoothing Rips through interaction effects?
• Uncertainty on determining the dark energy equation of state due to the spatial curvature
• Viscous Modified Gravity on a RS Brane Embedded in AdS5
• Evolution of perturbations in distinct classes of canonical scalar field models of dark energy
• Scalar perturbations in the late Universe: viability of the Chaplygin gas models
• Inflation and Bounce from Classical and Loop Quantum Cosmology Imperfect Fluids
• Scalar field cosmological models with finite scale factor singularities
• On Bianchi type III Cosmological Model with Quadratic EoS in Lyra Geometry
• New mechanism to cross the phantom divide
• Cosmological Constraints on Ghost Dark Energy in the Brans-Dicke Theory by Using MCMC Approach
• The Big Bang and the Quantum
• The Most Probable Size of the Universe
• Classifying the Future of Universes with Dark Energy
• Crossing the Phantom divide line in the Chaplygin gas model
• Late time accelerated scaling attractors in DGP (Dvali-Gabadadze-Porrati) braneworld
• Homogeneous and isotropic big rips?
• Dynamical-Screening and the Phantom-Like Effects in a DGP-Inspired $F(R,\varphi )$ Model
• Acceleration in Weyl integrable spacetime
• Stability analysis of the cosmological solutions with induced gravity and scalar field on the brane
• Six observations consistent with the electron neutrino being a tachyon with mass: $m_{{\nu }_e}^2=-0.11\pm 0.016e{V}^2$
• Observational tests of a two parameter power-law class modified gravity in Palatini formalism
• The generalized second law for the interacting new agegraphic dark energy in a non-flat FRW universe enclosed by the apparent horizon
• Sudden Future Singularity models as an alternative to Dark Energy?
• Effects of Finite-time Singularities on Gravitational Waves
• Cosmological reconstruction and {\it Om} diagnostic analysis of Einstein-Aether Theory
• Quantisation of the holographic Ricci dark energy model
• $f(T)$ cosmology: From Pseudo-Bang to Pseudo-Rip
• Singular Accelerated Evolution in Massive $F(R)$ Bigravity
• Initial directional singularity in inflationary models
• The effect of thermal radiation on singularities in the dark universe
• Singularity formation in asymptotically safe cosmology with inhomogeneous equation of state
• Generic Phase Portrait Analysis of the Finite-time Singularities and Generalized Teleparallel Gravity
• Dynamical description of a quintom cosmological model nonminimally coupled with gravity
• Vainshtein Screening in Bimetric Cosmology
• Interacting Ghost Dark Energy in Complex Quintessence Theory
• Conformal anomaly around the sudden singularity
• Dynamics of generalized tachyon field
• Electromagnetic waves in an axion-active relativistic plasma non-minimally coupled to gravity
• Periodic Cosmological Evolutions of Equation of State for Dark Energy
• Dynamical systems analysis of the cubic galileon beyond the exponential potential and the cosmological analogue of the vDVZ discontinuity
• Constructions of $f(R,G,\mathcal{T})$ Gravity from Some Expansions of the Universe
• Cosmologies from higher-order string corrections
• Little Rip and Pseudo Rip Phenomena from Coupled Dark Energy
• Cosmology in a reduced Born-Infeld--$f(T)$ theory of gravity
• On finite time singularities in scalar field dark energy models based in the RS-II Braneworld
• The classical and quantum fate of the Little Sibling of the Big Rip in $f(R)$ cosmology
• Big Bang Singularity Resolution In Quantum Cosmology
• Exploring Plane Symmetric Solutions in $f(R)$ Gravity
• Observational constraints on finite scale factor singularities
• On Isotropic Turbulence in the Dark Fluid Universe
• Dynamical analysis of logarithmic energy-momentum squared gravity
• Holographic dark energy with time varying $c^2$ parameter
• Universal thermodynamics in different gravity theories: Conditions for generalized second law of thermodynamics and thermodynamical equilibrium on the horizons
• Type V singularities in non-standard cosmological backgrounds
• Study of a viscous $\Lambda$WDM model: Near equilibrium condition, entropy production, and cosmological constraints
• Interacting realization of cosmological singularities with variable vacuum energy
• Interacting entropy-corrected holographic scalar field models in non-flat universe
• Perfect Fluid Cosmological Universes: One equation of state and the most general solution
• Quintessence and (Anti-)Chaplygin Gas in Loop Quantum Cosmology
• Linear matter density perturbations in the ${\Lambda }_{\mathrm{s}}$CDM model: Examining growth dynamics and addressing the $S_8$ tension
• Weyl Anomaly and Initial Singularity Crossing
• Parametrizing the transition to the phantom epoch with Supernovae Ia and Standard Rulers
• A Dark Energy Model with Generalized Uncertainty Principle in the Emergent, Intermediate and Logamediate Scenarios of the Universe
• The Reconstruction of Constant Jerk Parameter with $f(R,T)$ Gravity in Bianchi-I spacetime
• Observation constraints on scalar field cosmological model in Anisotropic universe
• Neutrino generated dynamical dark energy with no dark energy field
• Conformal Killing cosmology -- Geometry, dark sector, growth of structures, and big rip
• On the Consistency of the Wheeler-DeWitt Equation in the Quantized Eddington-inspired Born-Infeld Gravity
• Inhomogeneous Dark Fluid and Dark Matter, Leading to a Bounce Cosmology
• Quintom cosmological model and some possible solutions using Lie and Noether symmetries
• Qualitative description of the universe in the interacting fluids scheme
• Warm inflation with non-comoving scalar field and radiation fluid
• Finite-time singularities in modified $\mathcal{F}(R,G)$-gravity and singularity avoidance
• Polynomial $f(R)$ Palatini cosmology -- dynamical system approach
• The little rip in classical and quantum $f(R)$ cosmology
• Gravitational Origin of Phantom Dark Energy and Late Cosmic Acceleration
• Cyclic multiverses
• The Big Bang could be anisotropic. The case of Bianchi I model
• Variations of the fine-structure constant $\alpha$ in exotic singularity models
• Redshift drift test of exotic singularity universes
• Comment on "Extended Born-Infeld theory and the bouncing magnetic universe"
• Cosmological dynamics of a non-minimally coupled bulk scalar field in DGP setup
• Interacting phantom dark energy: new accelerating scaling attractors
• On the Expanding Phase of a Singular Bounce and Intermediate Inflation: The Modified Gravity Description
• Smooth crossing of $w_{\Lambda }=-1$ line in a single scalar field model
• Cosmographic analysis of sign-switching dark energy
• Could Planck Star Remnants be Dark Matter?
• Crossing the Cosmological Constant Line on a Warped DGP Brane
• Stable phantom-divide crossing in two scalar models with matter
• Born-Infeld gravity with a Brans-Dicke scalar
• Singular inflation from Born-Infeld-f(R) gravity
• Classical and quantum $f(R)$ cosmology: The big rip, the little rip and the little sibling of the big rip
• Polytropic gas scalar field models of dark energy
• Viscous extended holographic Ricci dark energy in the framework of standard Eckart theory
• Thermodynamics in a Modified Gravity Involving Higher-Order Torsion Derivative Terms
• No "big trips" for the universe
• A Lorentz Invariance Violating Cosmology on the DGP Brane
• First-order formalism for the quintom model of dark energy
• Cosmology in time asymmetric extensions of general relativity
• Quintessential and phantom power-law solutions in scalar tensor model of dark energy
• Cosmological evolution of a statistical system of degenerate scalar-charged fermions with an asymmetric scalar doublet. I. Two-component system of assorted charges
• Dark energy and dark matter perturbations in singular universes
• Cosmological Boundary Flux Parameter
• Inaccessible Singularities in Toral Cosmology
• Viscous Accelerating Universe with Non-linear and Logarithmic Equation of State Fluid
• Phantom energy accretion and primordial black holes evolution in Brans-Dicke theory
• Tachyon model of Tsallis holographic dark energy
• Dynamical System Analysis of a Dirac-Born-Infeld Model : A Center Manifold Perspective
• The Hubble Rate Trouble: An Effective Field Theory of Dark Matter
• Shear-free Anisotropic Cosmological Models in f(R) Gravity
• Reconstructing the Universe Evolution from Loop Quantum Cosmology Scalar Fields
• Tachyon field in loop quantum cosmology: An example of traversable singularity
• Bulk viscosity, interaction and the viability of phantom solutions
• Assessing the foundation and applicability of some dark energy fluid models in the Dirac-Born-Infeld framework
• Scalar field exact solutions for non-flat FLRW cosmology: A technique from non-linear Schrödinger-type formulation
• Non-critical anisotropic Bianchi type $I$ string cosmology with ${\alpha }^{\prime }$-corrections
• On the Cosmological Models with Matter Creation
• Some models of holographic dark energy on the Randall-Sundrum brane and observational data
• An interacting holographic dark energy model within an induced gravity brane
• Cosmic acceleration and ekpyrotic bounce with Chameleon field
• Thermodynamic aspects of entropic cosmology with viscosity
• Cosmological singularities in $f(T,\varphi )$ gravity
• Reconstructing FHDE with Scalar and Gauge Fields
• How Slowly can the Early Universe Expand?
• Braneworld cosmology in the sourced-Taub background
• A Viable Dark Fluid Model
• Spacetime averaging of exotic singularity universes
• Transition between phantom and non-phantom phases with time dependent cosmological constant and Cardy-Verlinde formula
• Phantom attractors in Kinetic Gravity Braiding theories: a dynamical system approach
• Turbulence Accelerating Cosmology from an Inhomogeneous Dark Fluid
• I. Linear Interacting Dark Energy: Analytical Solutions and Theoretical Pathologies
• Anisotropic Born-Infeld-f(R) Cosmologies
• Dark Energy and Cosmological Horizon Thermal Effects
• Regular braneworlds with nonlinear bulk-fluids
• Energy conditions for Inhomogeneous EOS and its Thermodynamics analysis with the resolution on finite time future singularity problems
• Entropic force, running gravitational coupling and future singularities
• Phantom cosmologies from QCD ghost dark energy
• Universal procedure to cure future singularities of dark energy models
• New futures for cosmological models
• Late-time evolution of cosmological models with fluids obeying a Shan-Chen-like equation of state
• Reconstruction of the equation of state for the cyclic universes in homogeneous and isotropic cosmology
• Tachyon field inspired dark energy and supernovae constraints
• Brane Kantowski-Sachs Universe with Linear Equation of State and Future Singularity
• Self-gravitating clouds of generalized Chaplygin and modified anti-Chaplygin Gases
• New perspectives on future rip scenarios with holographic dark energy
• Cosmological perturbations in the $\Lambda$CDM-like limit of a polytropic dark matter model
• Is the Big Rip unreachable?
• Qualitative study in Loop Quantum Cosmology
• Power-law expansion cosmology in Schrödinger-type formulation
• Einstein's Field Equations as a Fold Bifurcation
• De Sitter cosmology from Gauss-Bonnet dark energy with quantum effects
• A cosmological model describing the early inflation, the intermediate decelerating expansion, and the late accelerating expansion by a quadratic equation of state
• Constraining Parameters of Generalized Cosmic Chaplygin Gas in Loop Quantum Cosmology
• On Friedmann-Lema\^ıtre-Robertson-Walker cosmologies in non-standard gravity
• Dynamics of classes of barotropic fluids in spatially curved FRW spacetimes
• Modified gravity in a viscous and non-isotropic background
• Particle creation in flat FRW Universe in the framework of $f(T)$ gravity
• Shifted Riccati Procedure: Application to Conformal Barotropic FRW Cosmologies
• Is interacting vacuum viable?
• Effects of a Late Gravitational Transition on Gravitational Waves and Anticipated Constraints
• Loop Quantum Cosmology Scalar Field Models
• "Expansion" around the vacuum: how far can we go from Lambda?
• A Phase Space Diagram for Gravity
• Spacetime Singularities in Generalized Brans-Dicke Theories
• Type IV singular bouncing cosmology from $f(T)$ Gravity
• Non-exotic conformal structure of weak exotic singularities
• Wave asymptotics at a cosmological time-singularity: classical and quantum scalar fields
• Is a Topology Change After a Big Rip Possible?
• Entanglement entropy at critical points of classical evolution in oscillatory and exotic singularity multiverse models
• The Fate of the Universe Evolution in the Quadratic Form of Ricci-Gauss-Bonnet Cosmology
• Cosmological evolution with negative energy densities
• A non-singular early-time viscous cosmological model
• Loop Quantum Cosmology: Physics of Singularity Resolution and its Implications
• De-Sitter-spacetime instability from a nonstandard vector field
• Scalar field dark energy: Insights into cosmological evolution and black hole accretion
• Future cosmological evolution in $f(R)$ gravity using two equations of state parameters
• Sudden Future Singularities in Quintessence and Scalar-Tensor Quintessence Models
• Self-gravitating systems in Extended Gravity
• Crossing of the Cosmological Constant Boundary - an Equation of State Description
• New holographic Chaplygin gas model of dark energy
• Specially Coupled Dark Energy in the Oscillating FRW Cosmology
• Eternal vs singular observers in interacting dark energy-dark matter models
• Cosmic Steps in Modeling Dark Energy
• Transient dark energy, cosmological constant boundary crossing and dark energy $w(z)$ data fits
• Type V singularities with inhomogeneous equations of state
• Cosmology of Horava-Lifshitz f(R) Gravity
• $w$-singularities in cosmological models
• Evolution of Dark Energy Perturbations for Slotheon Field and Power Spectrum
• Is a pole type singularity an alternative to inflation?
• Holographic cosmology with two coupled fluids in the presence of viscosity
• A varying Dark Energy effective speed of sound parameter in the phantom Universe
• Role of a periodic varying deceleration parameter in Particle creation with higher dimensional FLRW Universe
• Equation of state description of the dark energy transition between quintessence and phantom regimes
• Quantum effects from particle production on background evolution and Cardy-Verlinde formula in f(R) gravity
• Form invariance symmetry generates a large set of FRW cosmologies
• Impact of dark energy on the equation of state in light of the latest cosmological data
• Cosmological Singularities in Conformal Weyl Gravity
• Phenomenological models of Universe with varying $G$ and $\Lambda$
• Considering Late-Time Acceleration in some Cosmological Models
• Cosmological implications of Born-Infeld-$f(R)$ gravity
• Structure of infinity in cosmology
• How Much NEC Breaking Can the Universe Endure?
• Quantum fields near phantom-energy `sudden' singularities
• Future soft singularities, Born-Infeld-like fields and particles
• Phantom expansion with non-linear Schrödinger-type formulation of scalar field cosmology
• Strength of the singularities, equation of state and asymptotic expansion
• Holographic energy density on Hořava-Lifshitz cosmology
• Cosmological Issues in $F(T)$ Gravity Theory
• Cosmological analogies, Lagrangians, and symmetries for convective-radiative heat transfer
• Singular behavior of the dark universe under the effect of thermal radiation in curved spacetime
• On the necessity of phantom fields for solving the horizon problem in scalar cosmologies
• The Holographic cosmology with axion field
• Dark energy with $w\to -1$: Asymptotic $\Lambda$ versus pseudo-$\Lambda$
• The oscillating dark energy and cosmological Casimir effect
• The Cosmological Models with Jump Discontinuities
• D-bound and Bekenstein bound for McVittie solution surrounded by dark energy cosmological fields
• Hawking radiation and thermodynamics of dynamical black holes in phantom dominated universe
• Dynamical dark energy models with singularities in the view of the forthcoming results of the growth observations
• Flows into de Sitter space from anisotropic initial conditions: An effective field theory approach
• Exact solutions in a scalar-tensor model of dark energy
• Entropic considerations on the Universe and Universe-Black Hole Systems
• Slow-roll, acceleration, the Big Rip and WKB approximation in NLS-type formulation of scalar field cosmology
• Rips and regular future scenario with Holographic Dark Energy: A comprehensive look
• Cosmological aspects of a vector field model
• Asymptotic solutions in f(R)-gravity
• $f(T)$ gravity from holographic Ricci dark energy model with new boundary conditions
• Singularities in inflationary cosmological models
• Big rip in shift-symmetric Kinetic Gravity Braiding theories
• Equation of state and singularities in FLRW cosmological models
• Dynamical Systems Analysis of $f(R,L_m)$ Gravity Model
• Viscous coupled fluids in terms of a log-corrected equation of state
• Future singularity free accelerating expansion with the modified Poisson brackets
• Behavior of $F(R)$ gravity around a crossing of the phantom divide
• Strength of singularities in varying constants theories
• Interacting vacuum at infinity
• Asymptotic Poincaré compactification and finite-time singularities
• A causal viscous cosmology without singularities
• Bouncing solutions from generalized EoS
• Cosmological singularities in non-canonical models of dark energy
• Inflationary Cosmology Leading to a Soft Type Singularity
• Non linear equation of state and effective phantom divide in brane models
• Holographic Cosmological Models on the Braneworld
• Ray tracing in FLRW flat space-times
• "All that matter ... in one Big Bang ...," & other cosmological singularities
• Sudden cosmological singularities in Aether scalar-tensor theories
• Revisiting cosmological diffusion models in Unimodular Gravity and the $H_0$ tension
• Observational constraints on thawing quintessence scalar field model
• Finite scale factor and future singularities
• Multifield theories invariant under transverse diffeomorphisms: The mixed regime case
• Interacting dark fluid in the universe bounded by event horizon : A non-equilibrium prescription
• The nature of cosmological singularities in isotropic universes and braneworlds
• Tadpole Cosmology: Milne Solution as a Cosmological Constant Hideout
• Cosmology in $R^2$-gravity: Effects of a Higher Derivative Scalar Condensate Background
• Vacuum fluctuation of conformally coupled scalar field in FLRW space-times
• What can the anthropic principle tell us about the future of the dark energy universe?
• Coupled fluids model in FRW space-time
• Regularizing future cosmological singularities with varying speed of light
• Holographic description of the dissipative model of universe with curvature
• 3 neutrino mass experiments fit a strange 3 + 3 model, but will KATRIN reveal the model's unique 3-part signature?
• The presence of a Phantom field in a Randall-Sundrum scenario
• Revisiting Holographic Dark Energy in Cyclic Cosmology
• Isotropic turbulence in the dark fluid universe with inhomogeneous equation of state
• Bel-Robinson energy and the nature of singularities in isotropic cosmologies
• Expanding Universe: Thermodynamical Aspects From Different Models
• The Dark Universe Riddle
• Singularities in and Stability of Ooguri-Vafa-Verlinde Cosmologies
• Perturbations of Einstein--Maxwell--phantom spacetime: Instabilities of charged Ellis--Bronnikov wormholes and quasinormal modes of black holes
• Traversable Lorentzian wormhole on the Shtanov-Sahni braneworld with matter obeying the energy conditions
• A Heuristic Approach to the Far-Future State of a Universe Dominated by Phantom Energy
• Cosmological Singularities in Brane Gravity
• Cosmic anisotropic doomsday in Bianchi type I universes
• Modified Friedmann Equations from Maxwell-Weyl Gauge Theory
• Metric Expansion from Microscopic Dynamics in an Inhomogeneous Universe
• Refined Thermodynamic Analysis of Perfect Fluid Dark Matter Black Holes in a Phantom Background
• Dark Energy in Global Brane Universe
• On rips and cosmological singularities in a universe merging with baby universes
• Two non-commutative parameters and regular cosmological phase transition in the semi-classical dilaton cosmology
• Dark energy with oscillatory tracking potential: Observational Constraints and Perturbative effects
• A Note on Gravitational Memory in F(R)-theories and their Equivalent Scalar-Tensor Theories
• Anisotropic Segre [(11)(1,1)] dark energy following a particular equation of state
• The holographic origin of future singularities and the role of spatial curvature in cosmic expansion
• A Spectrum of Cosmological Rips and Their Observational Signatures
• Qualitative types of cosmological evolution in hydrodynamic models with barotropic equation of state
• Cosmological sudden singularities in $f(R,T)$ gravity
• Parameterized Post-Newtonian Analysis of Quadratic Gravity and Solar System Constraints
• Finite time pseudo-rip singularity in cosmology
• Gauss-Bonnet Gravity and Spacetime Singularities
• Crunching, Bouncing, and Cyclical Cosmologies from Dark Sector Interactions
• Cosmology with Logarithmic Corrected Horizon Entropy According to the Generalized Entropy and Variable-G Correspondence
• Sudden Future Singularities and their observational signatures in Modified Gravity
• Cosmology of fractional gravity
• Singularity softening and avoidance by the action of thermal radiation in a generalized entropic cosmology
• Viscous effect in the late time evolution of phantom universe
• Conformal structure of singularities in some varying fundamental constants bimetric cosmologies
• Criticality and Big Brake singularities in the tachyonic evolutions of closed Friedmann universes with cold dark matter
• The cosmological constant as an eigenvalue of a Sturm-Liouville problem
• Dark Energy Density and IS (Israel-Stewart) Bulk Viscosity Model
• Quantum Quintom Cosmology
• On Singularities in Cosmic Inflation
• Evolution of entropic dark energy and its phantom nature
• Scalar perturbation of the viscosity dark fluid cosmological model
• Fermionic quantum cosmology as a framework for resolving type IV singularities
• Holographic dark energy models with Interactions and entropy corrections for different cutoffs in the Brans-Dicke cosmology
• Thermodynamics properties of the dark energy in loop quantum cosmology
• Power-law and Logarithmic Entropy Corrected Holographic Dark Energy Models in Brans-Dicke Cosmology with Granda-Oliveros Cut-Off
• Self-interaction in a cosmic dark fluid: The four-kernel rheological extension of the equations of state
• The relation between Geometry and Matter in classical and quantum Gravity and Cosmology
• Behavior of Friedmann-Lemaitre-Robertson-Walker Singularities
• Gaussian Planck Relics are Ruled-Out as Dark Matter by LIGO
• Cosmological models with Big rip and Pseudo rip Scenarios in extended theory of gravity
• Generalized Second Law and Thermodynamical Aspects of $f(Q,\mathcal{T})$ Gravity
• Some Classes of Gravitational Shock Waves from Higher Order Theories of Gravity
• Cosmological Implications of Thermodynamic Split Conjecture