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

作者：Tu, Fei-Quan^*; Chen, Yi-Xin^*

来源：European Physical Journal C, 2016, 76(1): 28.

DOI：10.1140/epjc/s10052-016-3889-z

• BLACK-HOLE
• PARTICLE CREATION
• GRAVITY THEORIES
• DARK ENERGY
• 1ST LAW
• 2ND LAW
• ENTROPY

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.

• 出版日期2016-1-21
• 单位浙江大学