Nernst theorem and entropy of dirac field in Reissner-Nordstrom black hole

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作者
Liu, Wen-Biao [1 ]
Zhu, Jian-Yang [1 ]
Zhao, Zheng [1 ]
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[1] Dept. Phys. Inst. of Theor. Phys., Beijing Normal University, Beijing 100875, China
来源
Wuli Xuebao/Acta Physica Sinica | 2000年 / 49卷 / 03期
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摘要
A Reissner-Nordstrom (R-N) black hole is regarded as a composite thermodynamic system composed of inner and outer horizons. The free energy and entropy of Dirac fields inside and outside the black hole are calculated via brick-wall method. It is found that the entropy is proportional to the area of inner and outer horizons. The entropy of Dirac field is 7/2 times of Klein-Gordon field. The total entropy of R-N black hole contributed by inner and outer horizons satisfies Nernst theorem.
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