Regular Article - Theoretical Physics
Superradiant instability of dyonic Reissner–Nordström black holes
Institute of Basic Sciences and Department of Computer Simulation, Inje University, 50834, Gimhae, Korea
2 Asia Pacific Center for Theoretical Physics, 37673, Pohang, Korea
Accepted: 11 October 2022
Published online: 20 October 2022
We investigate the superradiant instability of dyonic Reissner–Nordström (dRN) black holes with two charges under an electrically charged massive scalar perturbation. Two conditions for possessing a trapping well are obtained from analyzing asymptotic scalar potential and far-region wave functions. It is clear that the superradiant instability is not allowed in the dRN black holes because the conditions for a trapping well are not compatible with the superradiance condition.
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