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Advances in High Energy Physics
Volume 2017 (2017), Article ID 9687976, 6 pages
https://doi.org/10.1155/2017/9687976
Research Article

Thermodynamic Analysis of Gravitational Field Equations in Lyra Manifold

Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), P.O. Box 55134-441, Maragha, Iran

Correspondence should be addressed to H. Moradpour

Received 26 April 2017; Revised 18 June 2017; Accepted 16 July 2017; Published 14 August 2017

Academic Editor: Elias C. Vagenas

Copyright © 2017 H. Moradpour et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The publication of this article was funded by SCOAP3.

Abstract

Considering the Einstein field equations in Lyra manifold and applying the unified first law of thermodynamics as well as the Clausius relation to the apparent horizon of FRW universe, we find the entropy of apparent horizon in Lyra manifold. In addition, the validity of second law of thermodynamics and its generalized form are also studied. Finally, we use the first law of thermodynamics in order to find the horizon entropy of static spherically symmetric spacetimes. Some results of considering (anti)de-Sitter and Schwarzschild metrics have also been addressed.