Quasinormal modes of a quantum-corrected Schwarzschild black hole: gravitational and Dirac perturbations

被引：26

作者：

Saleh, Mahamat ^{[1
]}

Bouetou, Bouetou Thomas ^{[2
,3
,4
]}

Kofane, Timoleon Crepin ^{[3
,4
,5
,6
]}

机构：

[1] Univ Maroua, Dept Phys, Higher Teachers Training Coll, POB 55, Maroua, Cameroon

[2] Univ Yaounde I, Ecole Natl Super Polytech, POB 8390, Yaounde, Cameroon

[3] African Ctr Excellence Informat & Commun Technol, Yaounde, Cameroon

[4] Abdus Salam Int Ctr Theoret Phys, POB 586, I-34014 Trieste, Italy

[5] Univ Yaounde I, Dept Phys, Fac Sci, POB 812, Yaounde, Cameroon

[6] Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2016年 / 361卷 / 04期

关键词：

Black hole; Quasinormal modes; WKB approximation; STABILITY;

D O I：

10.1007/s10509-016-2725-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work, quasinormal modes (QNMs) of the Schwarzschild black hole are investigated by taking into account the quantum fluctuations. Gravitational and Dirac perturbations were considered for this case. The Regge-Wheeler gauge and the Dirac equation were used to derive the perturbation equations of the gravitational and Dirac fields respectively and the third order Wentzel-Kramers-Brillouin (WKB) approximation method is used for the computing of the quasinormal frequencies. The results show that due to the quantum fluctuations in the background of the Schwarzschild black hole, the QNMs of the black hole damp more slowly when increasing the quantum correction factor (a), and oscillate more slowly.

引用

页数：8

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