Abstract
The fundamental quasinormal resonances of charged Reissner–Nordström black holes due to charged scalar perturbations are derived analytically. In the WKB regime, qQ≫ℏ, we obtain a simple expression for the fundamental quasinormal resonances: ω=qQ/r+−i2πTBH(n+12), where TBH and Q are the temperature and electric charge of the black hole and q is the electric charge of the field. Remarkably, our results show that the relaxation dynamics of a perturbed Reissner–Nordström black hole may saturate the recently proposed universal relaxation bound.
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