Decoupling and non-decoupling dynamics of large D black holes
Jun 4, 2014
30 pages
Published in:
- JHEP 07 (2014) 113
- Published: 2014
e-Print:
- 1406.1258 [hep-th]
Report number:
- YITP-14-45,
- KEK-TH-1741,
- YITP-14-45,
- KEK-TH-1741
View in:
Citations per year
Abstract: (Springer)
The limit of large number of dimensions localizes the gravitational field of a black hole in a well-defined region near the horizon. The perturbative dynamics of the black hole can then be characterized in terms of states in the near-horizon geometry. We investigate this by computing the spectrum of quasinormal modes of the Schwarzschild black hole in the 1/D expansion, which we find splits into two classes. Most modes are non-decoupled modes: non-normalizable states of the near-horizon geometry that straddle between the near-horizon zone and the asymptotic zone. They have frequency of order D/r (with r the horizon radius), and are also present in a large class of other black holes. There also exist a much smaller number of decoupled modes: normalizable states of the near-horizon geometry that are strongly suppressed in the asymptotic region. They have frequency of order 1/r, and are specific of each black hole. Our results for their frequencies are in excellent agreement with numerical calculations, in some cases even in D = 4.Note:
- 30 pages, 13 figures; v2: minor corrections
- Black Holes
- Black Holes in String Theory
- black hole: Schwarzschild
- quasinormal mode: spectrum
- geometry
- decoupling
- horizon
- numerical calculations
- gravitation
- suppression
References(24)
Figures(13)
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