Electromagnetic Perturbations of Black Holes in Gauss-Bonnet Gravity

LIU Jing

理论物理通讯 ›› 2007, Vol. 47 ›› Issue (04) : 647-652.

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会计学季刊
Quarterly Journal of Accounting
主办单位:
香港中文大学会计学院
上海财经大学会计学院
南京大学商学院会计学系
ISSN: 3006-1415
PDF(193 KB)
理论物理通讯 ›› 2007, Vol. 47 ›› Issue (04) : 647-652.

Electromagnetic Perturbations of Black Holes in Gauss-Bonnet Gravity

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Electromagnetic Perturbations of Black Holes in Gauss-Bonnet Gravity

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Abstract

This paper mainly explores the electromagnetic perturbations of black holes in Gauss-Bonnet gravity and calculates the quasinormal modes for the 5-dimensional, 6-dimensional, 7-dimensional, and 8-dimensional black holes. When α increases from zero, the imaginary part of ω will increase accordingly till it reaches a maximum value where it starts to decrease. When α reaches zero, the quasinormal modes will approach their Schwarzschild values. If the Gauss-Bonnet coupling parameter α is large enough, the quasinormal modes will be proportional to α and the oscillation frequency will become high consequently . When L is large enough, the minimum value of -Im ω will approach a value too. We calculate that value for different dimensions.

关键词

Gauss-Bonnet gravity / quasinormal modes / electromagnetic perturbation

Key words

Gauss-Bonnet gravity / quasinormal modes / electromagnetic perturbation

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LIU Jing. Electromagnetic Perturbations of Black Holes in Gauss-Bonnet Gravity[J]. 理论物理通讯, 2007, 47(04): 647-652
LIU Jing. Electromagnetic Perturbations of Black Holes in Gauss-Bonnet Gravity[J]. Communications in Theoretical Physics, 2007, 47(04): 647-652
中图分类号: 04.30.-w    04.40.-b    04.50.+h   

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