Uncertainty relation and black hole entropy of Kerr spacetime
Hu Shuang-Qi (胡双启)a, Zhao Ren (赵仁)ab
a Department of Environment and Safety Engineering, North China University of Science and Technology, Taiyuan 030051, China; b Department of Physics, Yanbei Normal Institute, Datong 037009, China
Abstract The properties of thermal radiation are discussed by using a new equation of state density, which is motivated by the generalized uncertainty relation in the quantum gravity. There is no burst at the last stage of the emission of Kerr black hole. When the new equation of state density is utilized to investigate the entropy of a Bosonic field and Fermionic field outside the horizon of a static Kerr black hole, the divergence appearing in the brick wall model is removed, without any cutoff. The entropy proportional to the horizon area is derived from the contribution of the vicinity of the horizon.
Received: 21 July 2004
Revised: 07 March 2005
Accepted manuscript online:
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