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

Autor(es)

Momeni, D. ^{[1, 2]} ; Moraes, P. H. R. S. ^[3] ; Myrzakulov, R. ^{[1, 2]}

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: ASTROPHYSICS AND SPACE SCIENCE; v. 361, n. 7 JUL 2016.
• Citações Web of Science: 16

Resumo

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)

• Processo FAPESP: 15/08476-0 - Ondas gravitacionais em teorias f(R,T): estados de polarização e fontes astrofísicas
• Beneficiário: Pedro Henrique Ribeiro da Silva Moraes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado