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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Generalized second law of thermodynamics in f (R, T) theory of gravity

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Author(s):
Momeni, D. [1, 2] ; Moraes, P. H. R. S. [3] ; Myrzakulov, R. [1, 2]
Total Authors: 3
Affiliation:
[1] Eurasian Natl Univ, Eurasian Int Ctr Theoret Phys, Astana 010008 - Kazakhstan
[2] Eurasian Natl Univ, Dept Gen & Theoret Phys, Astana 010008 - Kazakhstan
[3] ITA Inst Tecnol Aeronaut, Dept Fis, BR-12228900 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: ASTROPHYSICS AND SPACE SCIENCE; v. 361, n. 7 JUL 2016.
Web of Science Citations: 15
Abstract

We present a study of the generalized second law of thermodynamics in the scope of the f (R, T) theory of gravity, with R and T representing the Ricci scalar and trace of the energy-momentum tensor, respectively. From the energy-momentum tensor equation for the f (R, T) = R + f (T) case, we calculate the form of the geometric entropy in such a theory. Then, the generalized second law of thermodynamics is quantified and some relations for its obedience in f (R, T) gravity are presented. Those relations depend on some cosmological quantities, as the Hubble and deceleration parameters, and also on the form of f (T). (AU)

FAPESP's process: 15/08476-0 - Gravitational waves in f(R,T) theories: polarization states and astrophysical sources
Grantee:Pedro Henrique Ribeiro da Silva Moraes
Support type: Scholarships in Brazil - Post-Doctorate