Journal
PHYSICS LETTERS B
Volume 688, Issue 2-3, Pages 125-128Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2010.03.086
Keywords
Generalized second law; Dark energy; Polytropic model; Apparent horizon
Funding
- Research Institute for Astronomy & Astrophysics of Maragha (RIAAM), Maragha, Iran
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We investigate the validity of the generalized second law of thermodynamics in a non-flat FRW universe containing the interacting polytropic dark energy with cold dark matter. The boundary of the universe is assumed to be enclosed by the dynamical apparent horizon. We show that for this model under thermal equilibrium with the Hawking radiation, the generalized second law is always satisfied throughout the history of the universe for any spatial curvature, independently of the deceleration parameter. (C) 2010 Elsevier B.V. All rights reserved.
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