A general thermodynamical description of the event horizon in the FRW universe

The European Physical Journal C

Fei-Quan Tu¹  Yi-Xin Chen¹ 

[1] Zhejiang Institute of Modern Physics, Zhejiang University, 310027, Hangzhou, China;

关键词: Black Hole;    Event Horizon;    Quantum Correction;    Apparent Horizon;    Einstein Gravity;   

DOI  :  10.1140/epjc/s10052-016-3889-z

来源: Springer

【 摘 要 】

The Friedmann equation in the Friedmann–Robertson–Walker (FRW) universe with any spatial curvature is derived from the first law of thermodynamics on the event horizon. The key idea is to redefine a Hawking temperature on the event horizon. Furthermore, we obtain the evolution equations of the universe including the quantum correction and explore the evolution of the universe in f(R) gravity. In addition, we also investigate the generalized second law of thermodynamics in Einstein gravity and f(R) gravity. This perspective also implies that the first law of thermodynamics on the event horizon has a general description in respect of the evolution of the FRW universe.

【 授权许可】

CC BY