Generalized Second Law of Thermodynamics for FRW Cosmology with Power-Law Entropy Correction

Abstract

In this work, we have considered the power law correction of entropy on the horizon. If the flat FRW Universe is filled with the n components fluid with interactions, the GSL of thermodynamics for apparent and event horizons have been investigated for equilibrium and non-equilibrium cases. If we consider a small perturbation around the de Sitter space-time, the general conditions of the validity of GSL have been found. Also if a phantom dominated Universe has a polelike type scale factor, the validity of GSL has also been analyzed. Further we have obtained constraints on the power-law parameter α in the phantom and quintessence dominated regimes. Finally we obtain conditions under which GSL breaks down in a cosmological background.

10 pages

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• Thawing and Freezing Quintessence Models: A thermodynamic Consideration
• Dark energy in thermal equilibrium with the cosmological horizon?
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