Quasinormal modes and hidden conformal symmetry in the
Reissner-Nordström black hole [PDF]
Yong-Wan Kim, Yun Soo Myung, Young-Jai ParkIt is shown that the scalar wave equation in the near horizon limit respects a hidden SL(2,R) invariance in the the Reissner-Nordstr\"om (RN) black hole spacetimes. We use the SL(2,R) symmetry to determine algebraically the imaginary quasinormal frequencies of the RN black hole, which leads to the Liouvillian quasinormal frequencies for describing large damping.View original: http://arxiv.org/abs/1205.3701
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