Particle creation and non-equilibrium thermodynamical prescription of dark fluids for universe bounded by an event horizon

Abstract

In the present work, flat FRW model of the universe is considered to be an isolated open thermodynamical system where non-equilibrium prescription has been studied using the mechanism of particle creation. In the perspective of recent observational evidences, the matter distribution in the universe is assumed to be dominated by dark matter and dark energy. The dark matter is chosen as dust while for dark energy, the following choices are considered: (i) Perfect fluid with constant equation of state and (ii) Holographic dark energy. In both the cases, the validity of generalized second law of thermodynamics (GSLT) which states that the total entropy of the fluid as well as that of the horizon should not decrease with the evolution of the universe, has been examined graphically for universe bounded by the event horizon. It is found that GSLT holds in both the cases with some restrictions on the interacting coupling parameter.

13 pages, 2 figures

References in corpus (8)

• Modified-gravity wormholes without exotic matter
• Le Chatelier-Braun principle in cosmological physics
• Matter density perturbations in interacting quintessence models
• Planck Constraints on Holographic Dark Energy
• Irreversible thermodynamic description of interacting dark energy - dark matter cosmological models
• Hydrodynamics of spacetime and vacuum viscosity
• A preliminary analysis of the energy transfer between the dark sectors of the Universe
• SNLS data are consistent with acceleration at z=3

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• Homogeneous and Isotropic space-time, Modified torsion field and Complete cosmic scenario
• Effects of particle creation rate in two-fluid interacting cosmologies