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Superradiant instability of charged massive scalar field in Kerr-Newman-anti-de Sitter black hole

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arxiv 1205.3929 v2 pith:WQ3BUFHZ submitted 2012-05-17 gr-qc hep-th

Ran Li This is my paper · ORCID
classification gr-qchep-th
keywords blackholefieldkerr-newman-anti-demassivescalarsittersmall
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We study the superradiance instability of charged massive scalar field in the background of Kerr-Newman-anti-de Sitter black hole. By employing the asymptotic matching technique to solve Klein-Gordon equation analytically, the complex parts of quasinormal frequencies are shown to be positive in the regime of superradiance. Because the calculation is performed in the approximation of small black hole, the result indicates that small Kerr-Newman-anti-de Sitter black hole is unstable against the massive scalar field perturbation with small charge.

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  1. Superradiant instability of charged scalar fields in higher-dimensional Reissner-Nordstr\"om-de Sitter black holes

    gr-qc 2019-08 conditional novelty 5.0 of 10

    Charged scalar perturbations of higher-dimensional Reissner-Nordström-de Sitter black holes are superradiantly unstable, with the growth rate increasing with spacetime dimension.

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