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Brick Walls for Nonstationary Black Holes |
| LI Zhong-Heng1;MI Li-Qin1;ZHAO Zheng2 |
| 1Department of Physics, Zhanjiang Normal College, Zhanjiang 524048
2Department of Physics, Beijing Normal University, Beijing 100875
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| Cite this article: |
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LI Zhong-Heng, MI Li-Qin, ZHAO Zheng 2002 Chin. Phys. Lett. 19 1755-1758 |
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Abstract The validity condition of the brick-wall model is analysed in nonstationary space-time. It is shown that the model holds only in thin regions, only by using tortoise coordinates, near the event horizon of a slowly varying (quasi-stationary) black hole. The reason for the use of tortoise coordinates is that the stationary state solutions of quantum field equations in other coordinates do not exist for any region in nonstationary space-time. Meanwhile, the quantum corrections to the entropy of the Vaidya-Bonner black hole due to the spin fields are calculated in terms of the brick-wall model.
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| Keywords:
04.70.Dy
04.62.+v
97.60.Lf
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Published: 01 December 2002
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| PACS: |
04.70.Dy
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(Quantum aspects of black holes, evaporation, thermodynamics)
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04.62.+v
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(Quantum fields in curved spacetime)
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97.60.Lf
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(Black holes)
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