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

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• 作者：Shahar Hod^a ; ^b ; ^{shaharhod@gmail.com}
• 刊名：Physics Letters B
• 出版年：2012
• 期刊代码：58_03702693
• 类别：ph
• 出版时间：4 April, 2012
• 卷：710
• 期：2
• 页码：349-351
• 文件大小：127 K

摘要

The fundamental quasinormal resonances of charged Reissner-Nordstr枚m black holes due to charged scalar perturbations are derived analytically. In the WKB regime, , we obtain a simple expression for the fundamental quasinormal resonances: , where 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-Nordstr枚m black hole may saturate the recently proposed universal relaxation bound.