Entropy of Vaidya-deSitter space-time - INSPIRE

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Entropy of Vaidya-deSitter space-time

Xiang Li
(
- Beijing Normal U.
)
,
Zheng Zhao
(
- Beijing Normal U.
)

2001

3 pages

Published in:

Chin.Phys.Lett. 18 (2001) 463-465

DOI:

10.1088/0256-307X/18/3/352

View in:

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Abstract: (IOP)

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 cut-off. The condition of local equilibrium near the horizon is used as a working postulate.

black hole: entropy
model: statistical
space-time: de Sitter
space-time: Vaidya
black hole: horizon
thermodynamics

References(12)

Figures(0)

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