Charged scalar perturbations around Garfinkle–Horowitz–Strominger black holes

We examine the stability of the Garfinkle–Horowitz–Strominger (GHS) black hole under charged scalar perturbations. Employing the appropriate numerical methods, we show that the GHS black hole is always stable against charged scalar perturbations. This is different from the results obtained in the de...

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Bibliographic Details
Published inNuclear physics. B Vol. 899; no. C; pp. 37 - 54
Main Authors Zhang, Cheng-Yong, Zhang, Shao-Jun, Wang, Bin
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.10.2015
Elsevier
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Summary:We examine the stability of the Garfinkle–Horowitz–Strominger (GHS) black hole under charged scalar perturbations. Employing the appropriate numerical methods, we show that the GHS black hole is always stable against charged scalar perturbations. This is different from the results obtained in the de Sitter and anti-de Sitter black holes. Furthermore, we argue that in the GHS black hole background there is no amplification of the incident charged scalar wave to cause the superradiance, so that the superradiant instability cannot exist in this spacetime.
ISSN:0550-3213
1873-1562
DOI:10.1016/j.nuclphysb.2015.07.030