Entropy of Vaidya-deSitter Spacetime
LI Xiang, ZHAO Zheng
Department of Physics, Beijing Normal University,Beijing
100875
Entropy of Vaidya-deSitter Spacetime
LI Xiang; ZHAO Zheng
Department of Physics, Beijing Normal University,Beijing
100875
关键词 ：
97.60.Lf ,
04.20.-q
Abstract ： As a statistical model of black hole entropy, the brick-wall method based on the thermal equilibrium in a large scale cannot be applied to the cases out of equilibrium, such as the non-static hole or the case with two horizons. However, the leading term of hole entropy called the Bekenstein-Hawking entropy comes from the contribution of the field near the horizon. According to this idea, the entropy of Vaidya-deSitter spacetime is calculated, A difference from the static case is that the result proportional to the area of horizon relies on a time-dependent cutoff. The condition of local equilibrium near the horizon is used as a working postulate.
Key words ：
97.60.Lf
04.20.-q
出版日期: 2001-03-01
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2001, Vol. 18 
