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Entropy of the Nonminimally Coupled Quantum Scalar Fields in a Stationary Axisymmetric Einstein-Maxwell Dilaton- Axion Black Hole |
| JING Ji-liang1,2;WANG Yong-jiu1 |
| 1Department Physics and Institute of Physics, Hu’nan Normal University, Changsha 410081
2Astronomy and Applied Physics Department, University of Science and Technology of China, Hefei 230026
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| Cite this article: |
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JING Ji-liang, WANG Yong-jiu 1999 Chin. Phys. Lett. 16 784-786 |
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Abstract The statistical-mechanical entropy of the stationary axisymmetric Einstein-Maxwell dilaton-axion black hole is investigated by using the “brick wall” model in which the original Dirichlet condition is replaced by a scattering ansatz for the field functions at the event horizon and regularized with the Pauli-Villars scheme. It is also shown, for the Kerr black hole, that the statistical-mechanical entropy obtained from our derivation coincides with the one-loop correction to its thermodynamical entropy obtained by the conical singularity method.
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| Keywords:
04.70.Dy
04.62.+v
97.60.Lf
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Published: 01 November 1999
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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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