Generalized second law of thermodynamics in modified FRW cosmology with corrected entropy-area relation

TL;DR

This paper examines the validity of the generalized second law of thermodynamics in a modified FRW cosmology with corrected entropy, finding it holds universally across different curvatures and dark energy models.

Contribution

It introduces a framework incorporating loop quantum gravity motivated entropy corrections into the generalized second law analysis in cosmology.

Findings

The generalized second law always holds in the considered model.

The law is valid regardless of spatial curvature.

It remains valid for any dark energy model.

Abstract

Using the corrected entropy-area relation motivated by the loop quantum gravity, we investigate the validity of the generalized second law of thermodynamics in the framework of modified FRW cosmology. We consider a non-flat universe filled with an interacting viscous dark energy with dark matter and radiation. The boundary of the universe is assumed to be the dynamical apparent horizon. We find out that the generalized second law is always satisfied throughout the history of the universe for any spatial curvature regardless of the dark energy model.