Quasinormal resonances of a charged scalar field in a charged Reissner-Nordstrom black-hole spacetime: A WKB analysis

被引：33
|
作者：
Hod, Shahar [1 ,2 ]
机构：
[1] Ruppin Acad Ctr, IL-40250 Emek Hefer, Israel
[2] Hadassah Inst, IL-91010 Jerusalem, Israel
来源：
PHYSICS LETTERS B | 2012年 / 710卷 / 02期
关键词：
NORMAL-MODES; WAVE-PROPAGATION; EVOLUTION; SPECTRUM; COLLAPSE; TAIL;
D O I：
10.1016/j.physletb.2012.03.010
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The fundamental quasinormal resonances of charged Reissner-Nordstrom black holes due to charged scalar perturbations are derived analytically. In the WKB regime, qQ >> n, we obtain a simple expression for the fundamental quasinormal resonances: omega = qQ/r(+) - i2 pi T-BH(n + 1/2), where T-BH and Q are the temperature and electric charge of the black hole and q is the electric charge of the field. Remarkably. our results show that the relaxation dynamics of a perturbed Reissner-Nordstrom black hole may saturate the recently proposed universal relaxation bound. (C) 2012 Elsevier B.V. All rights reserved.
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页码：349 / 351
页数：3
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