Title: Black Hole Microstates in AdS_4 From Supersymmetric Localisation

Speaker: Kiril Hristov (Inst. Nucl. Res., Sofia)

Abstract: This talk addresses the problem of counting the microstates of supersymmetric asymptotically AdS black holes in terms of a holographically dual field theory. We focus on a class of asymptotically AdS_4 static black holes preserving two real supercharges which are dual to a topologically twisted deformation of the ABJM theory. We evaluate in the large N limit the topologically twisted index of the ABJM theory and show that it correctly reproduces the entropy of the AdS_4 black holes. An extremization of the index with respect to a set of chemical potentials is required. We interpret it as the selection of the exact R-symmetry of the superconformal quantum mechanics describing the horizon of the black hole.

Time: Monday 7th November 2016, 2.30pm.

Place: Lecture Room, 1st Floor, School of Theoretical Physics, DIAS, 10 Burlington Road, Dublin 4.