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缓变动态Kerr-Newman黑洞的量子热力学性质
引用本文:王钢柱,王纪龙.缓变动态Kerr-Newman黑洞的量子热力学性质[J].物理学报,2004,53(6):1669-1674.
作者姓名:王钢柱  王纪龙
作者单位:太原理工大学应用物理系,太原 030024
基金项目:国家“973”项目(批准号:1998030600)和国家自然科学基金(批准号:10072013)资助的课题.
摘    要:引入局域热平衡概念,用Damour-Ruffini方法和薄膜模型研究了缓变动态Kerr-Newman黑洞的Hawking辐射和熵.得到了黑洞的Hawking温度和辐射谱公式,Hawking温度随时间和视界面上的位置而变化,辐射谱为准黑体谱;计算了黑洞熵,当取与静态球对称黑洞情况相同的截断关系时便得到了黑洞的Bekenstein-Hawking熵.结果表明,缓变动态黑洞的温度是局域量,缓变动态黑洞的熵与稳态黑洞情况一样正比于黑洞视界面面积. 关键词: 缓变动态黑洞 Hawking辐射 黑洞熵

关 键 词:缓变动态黑洞  Hawking辐射  黑洞熵
文章编号:1000-3290/2004/53(06)/1669-06
收稿时间:2003-07-18

Quantum thermodynamical properties of the slowly changing nonstationary Kerr-Newman black hole
Wang Gang-Zhu and Wang Ji-Long.Quantum thermodynamical properties of the slowly changing nonstationary Kerr-Newman black hole[J].Acta Physica Sinica,2004,53(6):1669-1674.
Authors:Wang Gang-Zhu and Wang Ji-Long
Abstract:Introducing the notion of the local thermal equilibrium,the Hawking effect and the entropy of a nonstationary Kerr Newman black hole whose metric changes slowly are studied by the method of Damour Ruffini and the thin film model.First,we obtain the Hawking radiation temperature and the thermal spectrum formula,and show that the Hawking temperature depends on the time and the location on the event horizon,the thermal spectrum is a quasi black body's thermal spectrum.Second,we calculate the black hole entropy,which is just the Bekenstein Hawking entropy with the same geometrical cutoff relationship as in the static and spherical case.The results show that the temperature of the black hole is a local quantity,and the entropy of the non stationary black hole is also proportional to the horizon area as in the case of stationary black holes.
Keywords:slowly changing nonstationary black hole  Hawking radiation  black hole entropy
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