ЖЭТФ, Том 144,
Вып. 2,
стр. 291 (Август 2013)
(Английский перевод - JETP,
Vol. 117, No 2,
p. 248,
August 2013
доступен on-line на www.springer.com
)
THERMODYNAMIC BEHAVIOR OF PARTICULAR f(R,T)-GRAVITY MODELS
Sharif M., Zubair M.
Поступила в редакцию: 24 Декабря 2012
DOI: 10.7868/S0044451013080075
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 , where δ is the energy flux across the horizon and 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.
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