Kerr/CFT correspondence
Correspondence between a Kerr black hole and a conformal field theory
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The Kerr/conformal field theory (CFT) correspondence is an extension of the usual anti de Sitter/CFT correspondence or gauge-gravity duality to rotating black holes (which are described by the Kerr metric).[1]
The duality works for black holes whose near-horizon geometry can be expressed as a product of AdS3 and a single compact coordinate. The AdS/CFT duality then maps this to a two-dimensional conformal field theory (the compact coordinate being analogous to the S5 factor in Juan Maldacena's original work), from which the correct Bekenstein entropy can then be deduced.[2]
The original form of the duality applies to black holes with the maximum value of angular momentum, but it has now been speculatively extended to all lesser values.[3]
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