The Highly Damped Quasinormal Modes of Extremal Reissner-Nordstrom and Reissner-Nordstrom-de Sitter Black Holes

Aug, 2007
16 pages
Published in:
  • Class.Quant.Grav. 25 (2008) 055001
e-Print:

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Abstract: (arXiv)
We analyze in detail the highly damped quasinormal modes of D-dimensional extremal Reissner-Nordstro¨\ddot{\rm{o}}m and Reissner-Nordstro¨\ddot{\rm{o}}m-de Sitter black holes. We only consider the extremal case where the event horizon and the Cauchy inner horizon coincide. We show that, even though the topology of the Stokes/anti-Stokes lines in the extremal case is different than the non-extremal case, the highly damped quasinormal mode frequencies of extremal black holes match exactly with the extremal limit of the non-extremal black hole quasinormal mode frequencies.
Note:
  • 16 pages, 4 figures
  • space-time: de Sitter
  • black hole: quasinormal mode
  • WKB approximation
  • black hole: Reissner-Nordstroem
  • monodromy
  • higher-dimensional
  • quasinormal mode: frequency