中国物理B ›› 2008, Vol. 17 ›› Issue (2): 467-472.doi: 10.1088/1674-1056/17/2/021

• GENERAL • 上一篇    下一篇

Entropy of quantum field in toroidal black hole without brick wall

王波波   

  1. Department of Physics, Beijing Jiaotong University, Beijing 100044, China
  • 收稿日期:2007-04-05 修回日期:2007-05-15 出版日期:2008-02-20 发布日期:2008-02-20

Entropy of quantum field in toroidal black hole without brick wall

Wang Bo-Bo(王波波)†   

  1. Department of Physics, Beijing Jiaotong University, Beijing 100044, China
  • Received:2007-04-05 Revised:2007-05-15 Online:2008-02-20 Published:2008-02-20

PDF (PC)

456

赞

摘要： In this paper the entropy of a toroidal black hole due to a scalar field is investigated by using the DLM scheme. The entropy is renormalized to the standard Bekenstein--Hawking formula with a one-loop correction arising from the higher curvature terms of the gravitational action. For the scalar field, the renormalized Newton constant and two renormalized coupling constants in the toroidal black hole are the same as those in the Reissner--Nordstrom black hole except for other one.

Abstract: In this paper the entropy of a toroidal black hole due to a scalar field is investigated by using the DLM scheme. The entropy is renormalized to the standard Bekenstein--Hawking formula with a one-loop correction arising from the higher curvature terms of the gravitational action. For the scalar field, the renormalized Newton constant and two renormalized coupling constants in the toroidal black hole are the same as those in the Reissner--Nordstrom black hole except for other one.

Key words: black hole, entropy renormalization, brick-wall model, scalar field

中图分类号:  (Quantum aspects of black holes, evaporation, thermodynamics)

  • 04.70.Dy
04.60.-m (Quantum gravity) 11.10.Gh (Renormalization)