Is the semi-classical analysis valid for extreme black holes?

被引：13

作者：

Alvarenga, FG ^{[1
]}

Batista, AB ^{[1
]}

Fabris, JC ^{[1
]}

Marques, GT ^{[1
]}

机构：

[1] Univ Fed Espirito Santo, Dept Fis, BR-29060900 Vitoria, Espirito Santo, Brazil

来源：

PHYSICS LETTERS A | 2003年 / 320卷 / 2-3期

关键词：

black thermodynamics;

D O I：

10.1016/j.physleta.2003.11.010

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The surface gravity for the extreme Reissner-Nordstrom black hole is zero suggesting that it has a zero temperature. However, the direct evaluation of the Bogolubov's coefficients, using the standard semi-classical analysis, indicates that the temperature of the extreme black hole is ill definite: the Bogolubov's coefficients obtained by performing the usual analysis of a collapsing model of a thin shell, and employing the geometrical optical approximation, do not obey the normalization conditions. We argue that the failure of the employment of semi-classical analysis for the extreme black hole is due to the absence of orthonormal quantum modes in the vicinity of the event horizon in this particular case. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：83 / 94

页数：12

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