Generalized second law of thermodynamics in the emergent universe for some viable models of f(T) gravity

被引：37

作者：

Ghosh, Rahul ^{[1
]}

Pasqua, Antonio ^{[2
]}

Chattopadhyay, Surajit ^{[3
]}

机构：

[1] Bhairab Ganguly Coll, Dept Math, Kolkata 700056, India

[2] Univ Trieste, Dept Phys, I-234127 Trieste, Italy

[3] Pailan Coll Management & Technol, Kolkata 700104, India

来源：

EUROPEAN PHYSICAL JOURNAL PLUS | 2013年 / 128卷 / 02期

关键词：

DARK ENERGY; F(R); ACCELERATION; CHAMELEON; COSMOLOGY;

D O I：

10.1140/epjp/i2013-13012-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The present work is motivated by the study of the paper K. Karami, A. Abdolmaleki, J. Cosmol. Astropart. Phys. 04, 007 (2012), where the generalized second law (GSL) of thermodynamics has been investigated for a flat FRW universe for three viable models of f(T) gravity. We have here considered a non-flat universe and, accordingly, studied the behaviors of the equation-of-state (EoS) parameter. and of the deceleration parameter q. Subsequently, using the first law of thermodynamics, we derived the expressions for the time derivative of the total entropy of a universe enveloped by apparent horizon. In the next phase, with the choice of scale factor a(t) pertaining to an emergent universe, we have investigated the sign of the time derivatives of total entropy for the models of f(T) gravity considered.

引用

页码：1 / 11

页数：11

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