Extremal Black Hole/CFT Correspondence in (Gauged) Supergravities

Details Extremal Black Hole/CFT Correspondence in (Gauged) Supergravities Extremal Black Hole/CFT Correspondence in (Gauged) Supergravities

2008-12-16

arxiv.org/abs/0812.2918v2

Phys.Rev.D79:084018,2009

Physics

High Energy Physics

High Energy Physics - Theory

32 pages, references added and minor typos fixed

Scientific paper

10.1103/PhysRevD.79.084018

We extend the investigation of the recently proposed Kerr/CFT correspondence to large classes of rotating black hole solutions in gauged and ungauged supergravities. The correspondence, proposed originally for four-dimensional Kerr black holes, asserts that the quantum states in the near-horizon region of an extremal rotating black hole are holographically dual to a two-dimensional chiral theory whose Virasoro algebra arises as an asymptotic symmetry of the near-horizon geometry. In fact in dimension D there are [(D-1)/2] commuting Virasoro algebras. We consider a general canonical class of near-horizon geometries in arbitrary dimension D, and show that in any such metric, the [(D-1)/2] central charges each imply, via the Cardy formula, a microscopic entropy that agrees with the Bekenstein-Hawking entropy of the associated extremal black hole. In the remainder of the paper we show for most of the known rotating black hole solutions of gauged supergravity, and for the ungauged supergravity solutions with four charges in D=4 and three charges in D=5, that their extremal near-horizon geometries indeed lie within the canonical form. This establishes that in all these examples, the microscopic entropies of the dual CFTs agree with the Bekenstein-Hawking entropies of the extremal rotating black holes.

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