Charged scalar perturbations around Garfinkle–Horowitz–Strominger black holes

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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Main Authors: Cheng-Yong Zhang, Shao-Jun Zhang, Bin Wang
Format: Article
Language:English
Published: Elsevier 2015-10-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321315002709
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spelling doaj-28c1d4e52a6b4ceb846a2b81a47932932020-11-24T22:42:41ZengElsevierNuclear Physics B0550-32131873-15622015-10-01899C375410.1016/j.nuclphysb.2015.07.030Charged scalar perturbations around Garfinkle–Horowitz–Strominger black holesCheng-Yong Zhang0Shao-Jun Zhang1Bin Wang2IFSA Collaborative Innovation Center, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaInstituto de Física, Universidade de São Paulo, C.P. 66318, 05315-970 São Paulo, SP, BrazilIFSA Collaborative Innovation Center, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, ChinaWe 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.http://www.sciencedirect.com/science/article/pii/S0550321315002709
collection DOAJ
language English
format Article
sources DOAJ
author Cheng-Yong Zhang
Shao-Jun Zhang
Bin Wang
spellingShingle Cheng-Yong Zhang
Shao-Jun Zhang
Bin Wang
Charged scalar perturbations around Garfinkle–Horowitz–Strominger black holes
Nuclear Physics B
author_facet Cheng-Yong Zhang
Shao-Jun Zhang
Bin Wang
author_sort Cheng-Yong Zhang
title Charged scalar perturbations around Garfinkle–Horowitz–Strominger black holes
title_short Charged scalar perturbations around Garfinkle–Horowitz–Strominger black holes
title_full Charged scalar perturbations around Garfinkle–Horowitz–Strominger black holes
title_fullStr Charged scalar perturbations around Garfinkle–Horowitz–Strominger black holes
title_full_unstemmed Charged scalar perturbations around Garfinkle–Horowitz–Strominger black holes
title_sort charged scalar perturbations around garfinkle–horowitz–strominger black holes
publisher Elsevier
series Nuclear Physics B
issn 0550-3213
1873-1562
publishDate 2015-10-01
description 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.
url http://www.sciencedirect.com/science/article/pii/S0550321315002709
work_keys_str_mv AT chengyongzhang chargedscalarperturbationsaroundgarfinklehorowitzstromingerblackholes
AT shaojunzhang chargedscalarperturbationsaroundgarfinklehorowitzstromingerblackholes
AT binwang chargedscalarperturbationsaroundgarfinklehorowitzstromingerblackholes
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