Black Hole Superradiance From Kerr/CFT

Irene Bredberg Harvard University Thomas Hartman Harvard University Wei Song Harvard University Andrew Strominger Harvard University

Mathematical Physics mathscidoc:1702.22033

Journal of High Energy Physics, 19, 2010.4
The superradiant scattering of a scalar field with frequency and angular momentum (ω, 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 (ω, m, M, J) of the scattering amplitudes is precisely reproduced by a dual two-dimensional 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.
Black HolesAdS-CFT CorrespondenceSpace-Time Symmetries
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  title={Black Hole Superradiance From Kerr/CFT },
  author={Irene Bredberg, Thomas Hartman, Wei Song, and Andrew Strominger},
  booktitle={Journal of High Energy Physics},
Irene Bredberg, Thomas Hartman, Wei Song, and Andrew Strominger. Black Hole Superradiance From Kerr/CFT . 2010. Vol. 19. In Journal of High Energy Physics.
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