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

¹ Department of Physics, University of Kurdistan - Pasdaran St., Sanandaj, Iran
² Research Institute for Astronomy & Astrophysics of Maragha (RIAAM) - Maragha, Iran
³ Department of Physics, Shahid Bahonar University - P.O. Box 76175, Kerman, Iran

^a kkarami@uok.ac.ir
^b sheykhi@mail.uk.ac.ir

Received: 4 November 2010
Accepted: 10 January 2011

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.