https://doi.org/10.1140/epjc/s10052-013-2440-8
Regular Article - Theoretical Physics
Quasinormal modes and hidden conformal symmetry in the Reissner–Nordström black hole
1
Center for Quantum Spacetime, Sogang University, Seoul, 121-742, Korea
2
Institute of Basic Science and School of Computer Aided Science, Inje University, Gimhae, 621-749, Korea
3
Department of Physics and Department of Global Service Management, Sogang University, Seoul, 121-742, Korea
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Received:
21
February
2013
Published online:
22
May
2013
Abstract
It is shown that the scalar wave equation in the near-horizon limit respects a hidden SL(2, R) invariance in the Reissner–Nordström (RN) black hole spacetimes. We use the SL(2, R) symmetry to determine algebraically the purely imaginary quasinormal frequencies of the RN black hole. We confirm that these are exactly quasinormal modes of scalar perturbation around the near-horizon region of a near-extremal black hole.
© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica, 2013
