Little Rip, Pseudo Rip and bounce cosmology with generalized equation of state in non-standard backgrounds

Abstract

The discovery of universe's late-time acceleration and dark energy has overseen a great deal of research into cosmological singularities and particularly future singularities. Perhaps the most extreme of such singlarities is the big rip, which has propelled a lot of work into ways of moderating it or seeking out alternatives to it and two such alternatives to the big rip are the Little rip and Pseudo rip. Another possibility to consider the far future of the universe is through bounce cosmologies, which presents its own interesting ideas. So in this work we investigate the Little rip, Pseudo rip and Bounce cosmology in non-standard cosmological backgrounds with a generalized equation of state in the presence of a viscous fluid. In particular we discuss about Chern-Simons cosmology and the RS-II Braneworld and discuss how the exotic and non-conventional nature of gravity in such cosmologies affect universal evolution in these scenarios. We find out that there are very significant differences in the behaviour of such cosmic scenarios in these universes in comparison to how they appear in the simple general relativistic universe.

arXiv commentMatches the accepted version at EPJC, 21 pages, no figures

References in corpus (56)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• Dynamics of dark energy
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• 4D Gravity on a Brane in 5D Minkowski Space
• Extended Theories of Gravity
• Cosmological Constant - the Weight of the Vacuum
• Introduction to Modified Gravity and Gravitational Alternative for Dark Energy
• Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
• Phantom Energy and Cosmic Doomsday
• Modified gravity with negative and positive powers of the curvature: unification of the inflation and of the cosmic acceleration
• Planck 2018 results. I. Overview and the cosmological legacy of Planck
• Cosmology on a Brane in Minkowski Bulk
• Inhomogeneous Equation of State of the Universe: Phantom Era, Future Singularity and Crossing the Phantom Barrier
• Braneworld models of dark energy
• Planck evidence for a closed Universe and a possible crisis for cosmology
• The final state and thermodynamics of dark energy universe
• Matter Bounce Cosmology with the f(T) Gravity
• Finite-time future singularities in modified Gauss-Bonnet and $\mathcal{F}(R,G)$ gravity and singularity avoidance
• Future of the universe in modified gravitational theories: Approaching to the finite-time future singularity
• Curvature tension: evidence for a closed universe
• Quantum escape of sudden future singularity
• Reconstruction of $f(T)$ gravity: Rip cosmology, finite-time future singularities and thermodynamics
• The Little Rip
• The new form of the equation of state for dark energy fluid and accelerating universe
• Bounce cosmology from $F(R)$ gravity and $F(R)$ bigravity
• Viscous Little Rip Cosmology
• Corrected Entropy-Area Relation and Modified Friedmann Equations
• Models for Little Rip Dark Energy
• Pseudo-rip: Cosmological models intermediate between the cosmological constant and the little rip
• On the cosmological constant problem
• Quintessential Inflation on the Brane and the Relic Gravity Wave Background
• Cosmology from an AdS Schwarzschild black hole via holography
• Scalar dark energy models mimicking $\Lambda$CDM with arbitrary future evolution
• Turbulence and Little Rip Cosmology
• Cyclic, ekpyrotic and little rip universe in modified gravity
• Dark Energy Coupled with Dark Matter in Viscous Fluid Cosmology
• Geometrization of light bending and its application to SdSw spacetime
• From Big to Little Rip in modified F(R,G) gravity
• Brane assisted quintessential inflation with transient acceleration
• Quasi-Rip: A New Type of Rip Model without Cosmic Doomsday
• Viscous Fluid Holographic Bounce
• Big Rip and Little Rip solutions in scalar model with kinetic and Gauss Bonnet couplings
• Holographic Cosmology from the First Law of Thermodynamics and the Generalized Uncertainty Principle
• Little Rip cosmological models with time-dependent equation of state
• Equation-of-state formalism for dark energy models on the brane and the future of brane universes
• Cosmological Models Coupled with Dark Matter in a Dissipative Universe
• Quasi-Rip and Pseudo-Rip Universes Induced by the Fluid Inhomogeneous Equation of State
• Rip Brane Cosmology from 4d Inhomogeneous Dark Fluid Universe
• The little rip in classical and quantum $f(R)$ cosmology
• Rip brane cosmology from a viscous holographic dark fluid
• Classical and quantum $f(R)$ cosmology: The big rip, the little rip and the little sibling of the big rip
• Holographic representation of the unified early and late universe via a viscous dark fluid
• Turbulence Accelerating Cosmology from an Inhomogeneous Dark Fluid
• Holographic cosmology with two coupled fluids in the presence of viscosity

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• Holographic bounce cosmological models induced by viscous dark fluid from a generalized non-singular entropy function
• On rips and cosmological singularities in a universe merging with baby universes
• Singularity softening and avoidance by the action of thermal radiation in a generalized entropic cosmology
• Finite time pseudo-rip singularity in cosmology