On the Microscopic Description of the Kerr Black Hole Speaker(s): Alexander Maloney
Abstract: We describe recent progress on the quantum description of the Kerr black hole. Previous descriptions of black hole microstates have relied on the existence of nearhorizon regions with conformal symmetry, and hence have only worked for extremal or supersymmetric black holes. We argue that the states of nonextremal black holes can also be understood in terms of a conformal symmetry, the difference being that this symmetry is not geometrically realized. Thus a Kerr black hole is an excited state of a conformal field theory. By making certain (natural) assumptions about the nature of this dual CFT we can compute its density of states. This gives a microscopic computation of the BekensteinHawking entropy of a Kerr black hole with arbitrary mass and angular momentum.
Date: 17/06/2010  10:00 am
