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- W2892331030 abstract "When a scalar wave perturbation is properly scattering off a charged or rotating black hole, the energy of the reflected scalar wave may be amplified. This is a superradiant process. If this amplification process can occur back and forth through certain confining mechanism, it will lead to strong instability of the black hole. In this paper, the superradiant stability is investigated for a special kind of dyonic black holes in string theory. Although the dynoic black hole has a similar spacetime metric with a electrically charged RN black hole, it is found that the dyonic black hole is more unstable than a RN black hole due to the coupling between magnetic charge of the dyonic black hole and the imping electrically charged scalar wave. We find two superradiantly stable regions in the parameter space for the dyonic black holes and charged massive scalar perturbation." @default.
- W2892331030 created "2018-09-27" @default.
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- W2892331030 date "2018-09-19" @default.
- W2892331030 modified "2023-09-27" @default.
- W2892331030 title "Superradiant instability of dyonic black holes in string theory" @default.
- W2892331030 cites W2036921979 @default.
- W2892331030 hasPublicationYear "2018" @default.
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