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De Sitter背景时空中NUT-Kerr-Newman黑洞的玻色子熵
引用本文:葛先辉,沈有根.De Sitter背景时空中NUT-Kerr-Newman黑洞的玻色子熵[J].天文学报,2003,44(1):80-86.
作者姓名:葛先辉  沈有根
作者单位:1. 中国科学院上海天文台,上海,200030;中国科学院国家天文台,北京,100012
2. 中国科学院上海天文台,上海,200030;中国科学院国家天文台,北京,100012;中国科学院理论物理研究所,北京,100080
基金项目:国家自然科学基金(批准号:10273017,10073006)资助,上海市科技发展基金(批准号: 01-JC14035)资助项目
摘    要:众所周知,一般黑洞的欧拉示性数都为2(或者为0),而NUT—Kerr—Newman黑洞是个例外,其欧拉示性数大于2.因此计算NUT—Kerr—Newman黑洞的玻色子熵有特殊的意义.运用在brick-wall方法的基础上发展起来的膜模型计算了NUT-Kerr—Newman黑洞在de Sitter时空背景下的玻色子熵.结果表明,在选取适当的截断因子的情况下,该黑洞的熵仍满足Bekenstein—Hawking面积定律.

关 键 词:欧拉示性数  NUT-Kerr-Newman黑洞  玻色子熵  DeSitter背景时空
修稿时间:2002年5月13日

Boson Entropy in the NUT-Kerr-Newman Black Holes in the Background of de Sitter Space-time
GE Xian-Hui SHEN You-Gen.Boson Entropy in the NUT-Kerr-Newman Black Holes in the Background of de Sitter Space-time[J].Acta Astronomica Sinica,2003,44(1):80-86.
Authors:GE Xian-Hui SHEN You-Gen
Abstract:It is well known that the Euler characteristics of most black holes is 2(or 0), only NUT-Kerr-Newman black hole whose Euler characteristics is over 2.Therefore, it is significant to calculate the entropy in the NUT-Kerr-Newman black holes. The entropy of boson field in the NUT-Kerr-Newman black holes in the background of the de Sitter space-time is calculated by using the improved brick-wall method-membrane model. The results evinced that as the cut-off is properly chosen, the entropy in the black hole satisfies Bekenstein-Hawking area law.
Keywords:BLACK holes physics  
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