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Reissner-Nordstrom Black Hole Entropy Inside and Outside the Brick Wall |
| LIU Wen-Biao |
| 1Department of Physics, Institute of Theoretical Physics, Beijing Normal University, Beijing 100875
2CCAST (World Laboratory), PO Box 8730, Beijing 100080 |
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| Cite this article: |
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LIU Wen-Biao 2003 Chin. Phys. Lett. 20 440-443 |
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Abstract Applying the generalized uncertainty relation to the calculation of the free energy and entropy of a Reissner-Nordstrom black hole inside the brick wall, the entropy proportional to the horizon area is derived from the contribution of the vicinity of the horizon. This is compared with the entropy calculated via the original brick wall model. The entropy given by the original brick wall model comes from the outside of the brick wall seemingly. The inside result using generalized uncertainty relation is similar to the outside result using original uncertainty relation, and the divergence inside the brick wall disappears. It is apparent that the cutoff is something related to the quantum theory of gravity.
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| Keywords:
97.60.Lf
04.70.Dy
05.30.Ch
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Published: 01 March 2003
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| PACS: |
97.60.Lf
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(Black holes)
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04.70.Dy
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(Quantum aspects of black holes, evaporation, thermodynamics)
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05.30.Ch
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(Quantum ensemble theory)
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