AdS$_2$/CFT$_1$ correspondence and near-extremal black hole entropy
/ Authors
/ Abstract
We provide a realization of the AdS 2 /CFT 1 correspondence in terms of asymptotic symmetries of the AdS 2 × S 1 and AdS 2 × S 2 geometries arising in near-extremal BTZ and Reissner-Nordstr¨om black holes. Cardy’s formula exactly accounts for the deviation of the Bekenstein-Hawking entropy from extremality. We also argue that this result can be extended to more general black holes near extremality.