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arXiv · 1412.1527

Numerical study of superradiant instability for charged stringy black hole-mirror system

Ran Li·Junkun Zhao
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Abstract

We numerically study the superradiant instability of charged massless scalar field in the background of charged stringy black hole with mirror-like boundary condition. We compare the numerical result with the previous analytical result and show the dependencies of this instability upon various parameters of black hole charge $Q$, scalar field charge $q$, and mirror radius $r_m$. Especially, we have observed that imaginary part of BQN frequencies grows with the scalar field charge $q$ rapidly.

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Ran Li, Junkun Zhao. 2014-12-04. Numerical study of superradiant instability for charged stringy black hole-mirror system. https://doi.org/10.1016/j.physletb.2014.12.007

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