中国物理B ›› 1999, Vol. 8 ›› Issue (2): 109-117.doi: 10.1088/1004-423X/8/2/004

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ENTROPY IN DEMIANSKI-NEWMAN BLACK HOLE

万浪辉, 朱建阳   

  1. Department of Physics, Jiangxi Normal University, Nanchang 330027, China
  • 收稿日期:1998-06-22 修回日期:1998-10-08 出版日期:1999-02-15 发布日期:1999-02-20
  • 基金资助:
    Project supported by the Natural Science Foundation of Jiangxi Province (Grant No.961253), China.

ENTROPY IN DEMIANSKI-NEWMAN BLACK HOLE

Wan Lang-hui (万浪辉), Zhu Jian-yang (朱建阳)   

  1. Department of Physics, Jiangxi Normal University, Nanchang 330027, China
  • Received:1998-06-22 Revised:1998-10-08 Online:1999-02-15 Published:1999-02-20
  • Supported by:
    Project supported by the Natural Science Foundation of Jiangxi Province (Grant No.961253), China.

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摘要： By using the brick-wall model we calculate the free energy and the entropy including the superradiant effect mode of the scalar field in Demianski-Newman black hole. When the radial cut-off factor \barε and the angular cut-off factor δ satisfy a proper relation, the entropy can be written as S=AH/4.

Abstract: By using the brick-wall model we calculate the free energy and the entropy including the superradiant effect mode of the scalar field in Demianski-Newman black hole. When the radial cut-off factor $\bar{\varepsilon}$ and the angular cut-off factor $\delta$ satisfy a proper relation, the entropy can be written as S=AH/4.

中图分类号:  (Physics of black holes)

  • 04.70.-s
05.70.Ce (Thermodynamic functions and equations of state) 04.60.-m (Quantum gravity)