期刊
PHYSICS LETTERS B
卷 790, 期 -, 页码 400-407出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2019.01.046
关键词
-
资金
- National Research Foundation of Korea (NRF) - Korea government (MOE) [NRF-2017R1A2B4002057]
We perform the stability analysis on scalarized charged black holes in the Einstein-Maxwell-Scalar (EMS) theory by computing quasinormal mode spectrum. It is noted that the appearance of these black holes with scalar hair is closely related to the instability of Reissner-Nordstrom black holes without scalar hair in the EMS theory. The scalarized charged black hole solutions are classified by the order number of n = 0,1,2, ... , where n = 0 is called the fundamental branch and n = 1, 2, ... denote the n excited branches. Here, we show that the n = 1, 2 excited black holes are unstable against the s(l = 0)-mode scalar perturbation, while the n = 0 black hole is stable against all scalar-vector-tensor perturbations. This is consistent with other scalarized black holes without charge found in the Einstein-Scalar-Gauss-Bonnet theory. (C) 2019 The Author(s). Published by Elsevier B.V.
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