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Superradiant instability of charged scalar fields in higher-dimensional Reissner-Nordström-de Sitter black holes

Superradiant instability of charged scalar fields in higher-dimensional Reissner-Nordström-de Sitter black holes

Black holes possess trapping regions which lead to intriguing dynamical effects. By properly scattering test fields off a black hole, one can extract energy from it, leading to the growth of the amplitude of the test field in expense of the black hole's energy. Such a dynamical phenomenon is called …