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Hawking radiation of scalar particles of Kerr-Newman-de Sitter XY (KNdSXY) black holes is studied by using complex analytical continuation (CAC) technique. We derive the surface gravity κh,κc and Hawking temperature Tb,Tc of the event horizons r+,r++. All of them are proportional to (|A|)1/2, where A is an indefinite multiple of KNdSXY metric. 相似文献
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许殿彦 《数学物理学报(B辑英文版)》1988,(2)
The α_3 coefficient of scalar field in arbitrary Riemann space-time background is calculated by point separation method in this article. The primary expression of α_3 involves 25 invariants. Using the identities derived in the appendix, we can reduce α_3 from 25 invariants to 17 invariants which agree with Gilkey's formula for α_s coefficient of the scalar field derived by geometric methods and reasons. Recently we derived two important invariant identilies, using these identities we can reduce α_3 from 17 invariants to 15 invariants which would much simplify the calculation of the energymomentum tensor of vacuum polarization. 相似文献
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本文用旋量零标架方法计算相对论性氢原子能级,所得结果与Γ矩阵方法算得的结果一样,但不明显地使用任何对易关系。
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本文研究任意Kerr-Newman黑洞视界曲面上荷电Dirac粒子的Hawking辐射,首先构造了一套“对称零标架”,用这套零标架计算了旋系数,导出了Dirac方程,在视界曲面附近解Dirac方程。得到荷电Dirac粒子四分量波函数的显示表式。利用解析延拓技巧,最后得到荷电Dirac粒子Hawking辐射的热谱公式。
关键词: 相似文献
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The general expression of vacuum polarization energymomentum tensors for scalar field is derived in one loop approximation. Some special cases are discussed. Parts of the energymomentum tensors for scalar field around the Kerr-Newman blackholes are calculated. 相似文献
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A NEW DIRECT METHOD FOR HEAT KERNEL EXPANSION IN CURVED SPACE AND THE RESUMMED FORM OF NONDERIVATIVE TERM
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A new method is proposed for heat kernel expansion in curved space, without using the recursion relation. The existence of the resummed form of nonderivative terms arising out of X from the operator A =-□+ X is proved. The De Witt-Seeley-Gilkey coefficients E2(x) and E4(x) are derived. 相似文献