Thermodynamic behavior of particular f(R,T)-gravity models
We investigate the thermodynamics at the apparent horizon of the FRW universe in f(R, T) theory in the nonequilibrium description. The laws of thermodynamics are discussed for two particular models of the f(R, T) theory. The first law of thermodynamics is expressed in the form of the Clausius relation <##> $$ T{sub h} d/hat S{sub h} = /delta Q $$T{sub h}d S-hat {sub h}=δQ, where δQ is the energy flux across the horizon and <##> $ d/hat S $d S-hat is the entropy production term. Furthermore, the conditions for the generalized second law of thermodynamics to be preserved are established with the constraints of positive temperature and attractive gravity. We illustrate our results for some concrete models in this theory.
- OSTI ID:
- 22210515
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 117, Issue 2; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; http://www.springer-ny.com; This record replaces 45031441; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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