Journal
EPL
Volume 92, Issue 5, Pages -Publisher
EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
DOI: 10.1209/0295-5075/92/50014
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Funding
- Center of Excellence on the Structure of Matter of the University of Tehran
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We consider a spatially flat Friedmann-Lemaitre-Robertson-Walker space-time and investigate the second law and the generalized second law of thermodynamics for apparent horizon in the generalized modified Gauss-Bonnet theory of gravity (whose action contains a general function of the Gauss- Bonnet invariant and the Ricci scalar: F(R, G)). By assuming that the apparent horizon is in thermal equilibrium with the matter inside it, conditions which must be satisfied by F( R, G) are derived and elucidated through two examples: a quasi-de Sitter space- time and a universe with power law expansion. Copyright (C) EPLA, 2010
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