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Black Hole Superradiance From Kerr/CFT

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arxiv 0907.3477 v1 pith:7GT6GMJV submitted 2009-07-21 hep-th astro-ph.HEgr-qc

Black Hole Superradiance From Kerr/CFT

classification hep-th astro-ph.HEgr-qc
keywords blackfieldholekerromegascalarscatteringspecific
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The superradiant scattering of a scalar field with frequency and angular momentum (\omega,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 (\omega,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.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Massless scalar scattering by Kerr-Bertotti-Robinson black holes:transparent-end channels and superradiance

    gr-qc 2026-07 accept novelty 7.0

    In the transparent-end model, scalar superradiance on Kerr–BR black holes operates only when both the horizon frequency gate and the outer propagation gate are open, and the propagation gate closes the window at BM≈0....

  2. Kerr/CFT Traversable Wormhole with Fermionic Double-Trace Deformation

    hep-th 2026-05 unverdicted novelty 7.0

    Fermionic double-trace deformation modifies the two-point function in Kerr/CFT to supply negative energy that opens a traversable wormhole, with traversability peaking at early times and increasing with near-extremal ...

  3. Explorations of Universality in the Entropy and Hawking Radiation of Non-Extremal Kerr AdS$_4$ Black Holes

    hep-th 2025-08 unverdicted novelty 6.0

    Multiple microscopic methods confirm universality of AdS4 black hole entropy for non-extremal cases at high temperatures and show Hawking radiation rate proportional to horizon area.

  4. Quasinormal mode/grey-body factor correspondence for Kerr black holes

    gr-qc 2025-12 conditional novelty 5.0

    WKB analysis of the Teukolsky equation establishes a quasinormal-mode to greybody-factor correspondence for Kerr black holes that holds in the eikonal limit for gravitational perturbations and matches numerics at high...

  5. Monodromy, Hidden Conformal Symmetry and Soft Hair in Kerr-MOG Black Hole

    hep-th 2026-07 conditional novelty 4.0

    Kerr-MOG black holes are claimed to admit a 2D CFT dual with temperatures TL and TR and central charge 12J, reproducing the Bekenstein-Hawking entropy and scalar absorption cross section.