Black Hole Superradiance From Kerr/CFT

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Black Hole Superradiance From Kerr/CFT

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Title: Black Hole Superradiance From Kerr/CFT
Author: Bredberg, Irene; Hartman, Thomas; Song, Wei; Strominger, Andrew E.

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Citation: Bredberg, Irene, Thomas Hartman, Wei Song, and Andrew E. Strominger. 2010. Black hole superradiance from Kerr/CFT. Journal of High Energy Physics 2010(4): 19.
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Abstract: The superradiant scattering of a scalar field with frequency and angular momentum (w,m) by a near-extreme Kerr black hole with mass and spin (M, J) was derived in the seventies by Starobinsky, Churilov, Press and Teukolsky. In this paper we show that for frequencies scaled to the superradiant bound the full functional dependence on (w,m,M, J) of the scattering amplitudes is precisely reproduced by a dual twodimensional conformal field theory in which the black hole corresponds to a specific thermal state and the scalar field to a specific operator. This striking agreement corroborates a conjectured Kerr/CFT correspondence.
Published Version: doi:10.1007/JHEP04(2010)019
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