Viscous dark energy and generalized second law of thermodynamics

Abstract

We examine the validity of the generalized second law of thermodynamics in a non-flat universe in the presence of viscous dark energy. At first we assume that the universe filled only with viscous dark energy. Then, we extend our study to the case where there is an interaction between viscous dark energy and pressureless dark matter. We examine the time evolution of the total entropy, including the entropy associated with the apparent horizon and the entropy of the viscous dark energy inside the apparent horizon. Our study show that the generalized second law of thermodynamics is always protected in a universe filled with interacting viscous dark energy and dark matter in a region enclosed by the apparent horizon. Finally, we show that the the generalized second law of thermodynamics is fulfilled for a universe filled with interacting viscous dark energy and dark matter in the sense that we take into account the Casimir effect.

arXiv comment12 pages

References in corpus (60)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Quintessence, Cosmic Coincidence, and the Cosmological Constant
• A Flat Universe from High-Resolution Maps of the Cosmic Microwave Background Radiation
• Phantom Energy and Cosmic Doomsday
• New Constraints on ${\Omega }_M$, ${\Omega }_{\Lambda }$, and w from an Independent Set of Eleven High-Redshift Supernovae Observed with HST
• Dark Energy Constraints from the Cosmic Age and Supernova
• Quantum deSitter cosmology and phantom matter
• Cosmological Evolution of a Quintom Model of Dark Energy
• First Law of Thermodynamics and Friedmann Equations of Friedmann-Robertson-Walker Universe
• Holographic dark energy and cosmic coincidence
• Cosmological parameters from combining the Lyman-alpha forest with CMB, galaxy clustering and SN constraints
• Transition of the dark energy equation of state in an interacting holographic dark energy model
• Interacting Quintessence
• Unified first law of black-hole dynamics and relativistic thermodynamics
• A classification of scalar field potentials with cosmological scaling solutions
• The Microwave Anisotropy Probe (MAP) Mission
• Interacting quintessence solution to the coincidence problem
• Thermodynamic Behavior of Friedmann Equation at Apparent Horizon of FRW Universe
• Quantum effects can render w<-1 on cosmological scales
• The Holographic Dark Energy in a Non-flat Universe
• Unified First Law and Thermodynamics of Apparent Horizon in FRW Universe
• Cosmic Holography
• Oscillating Quintom and the Recurrent Universe
• Dark energy and the generalized second law
• Dark Energy and Viscous Cosmology
• Tracking and coupled dark energy as seen by WMAP
• Thermodynamical Properties of Apparent Horizon in Warped DGP Braneworld
• Dynamic black-hole entropy
• Inflation and de Sitter Thermodynamics
• Quintom models with an equation of state crossing -1
• Deep Connection Between Thermodynamics and Gravity in Gauss-Bonnet Braneworld
• Thermodynamics of Apparent Horizon in Brane World Scenario
• Interacting holographic dark energy model and generalized second law of thermodynamics in non-flat universe
• A Single Scalar Field Model of Dark Energy with Equation of State Crossing -1
• Thermodynamical description of the interaction between holographic dark energy and dark matter
• Scaling Cosmology
• Viscous dark energy and phantom evolution
• Coupled oscillators as models of quintom dark energy
• Relating Friedmann equation to Cardy formula in universes with cosmological constant
• The generalized second law of thermodynamics in the accelerating universe
• Quintom model with O($N$) symmetry
• Generalized second law of thermodynamics in Gauss-Bonnet braneworld
• The Generalized Second Law of Thermodynamics in Cosmology
• Quintom Cosmology with General Potentials
• Shape invariance method for quintom model in the bent brane background
• Non-minimally Coupled Quintom Model Inspired by String Theory
• Braneworld models with a non-minimally coupled phantom bulk field: a simple way to obtain the -1-crossing at late times
• Viscous FRW Cosmology in Modified Gravity
• Friedmann cosmology with a generalized equation of state and bulk viscosity
• Friedmann equation and Cardy formula correspondence in brane universes
• Viscous Dark Cosmology with Account of Quantum Effects
• Holography in a Radiation-dominated Universe with a Positive Cosmological Constant
• Dissipative or Conservative cosmology with dark energy ?
• de Sitter thermodynamics and the braneworld
• Generalized second law of thermodynamics in warped DGP braneworld
• Fermions Tunneling from Apparent Horizon of FRW Universe
• Randall-Sundrum Model in the Presence of a Brane Bulk Viscosity

Cited by in corpus (22)

• Viscous Cosmology for Early- and Late-Time Universe
• Friedmann model with viscous cosmology in modified $f(R,T)$ gravity theory
• Generalized Second Law of Thermodynamics in $f(T)$ Gravity with Entropy Corrections
• Bulk viscous matter and recent acceleration of the Universe
• Phantom dark energy as an effect of bulk viscosity
• Late-Time Viscous Cosmology in $f(R,T)$ Gravity
• Crossing the phantom divide with dissipative normal matter in the Israel-Stewart-Hiscock formalism
• Phase space analysis of bulk viscous matter dominated universe
• Viscous cosmology in $f(T)$ gravity
• Kaluza-Klein bulk viscous fluid cosmological models and the validity of the second law of thermodynamics in $f(R,T)$ gravity
• Phantom Instability of Viscous Dark Energy in Anisotropic Space-Time
• Canonical and phantom scalar fields as an interaction of two perfect fluids
• Interacting Viscous Dark Energy in Bianchi Type-I Universe
• Power-Law and Logarithmic Entropy-Corrected Ricci Viscous Dark Energy and Dynamics of Scalar Fields
• Bulk viscous matter in $f(T)$ gravity: A path to cosmic acceleration
• No stable dissipative phantom scenario in the framework of a complete cosmological dynamics
• Viscous Dark Energy and Phantom Field in An Anisotropic Universe
• Israel-Stewart approach to viscous dissipative extended holographic Ricci dark energy dominated universe
• A comprehensive analysis of Barrow holographic Chaplygin gas model reconstruction and its cosmological consequences
• Holographic Ricci dark energy and generalized second law
• Thermodynamical aspects of modified holographic dark energy model
• Late time cosmological solutions in $f(R,T)$ gravity in a viscous Universe