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Status |
Confirmed |
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Seminar Series |
IPHT-MAT |
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Subjects |
hep-th |
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Date |
Wednesday 26 April 2017 |
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Time |
14:15 |
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Institute |
IPHT |
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Seminar Room |
Salle Claude Itzykson, Bât. 774 |
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Speaker's Last Name |
Kiril Hristov |
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Speaker's First Name |
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Speaker's Email Address |
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Speaker's Institution |
INRNE, Sofiya |
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Title |
Black hole microstates in AdS$_4$ and AdS$_5$ from supersymmetric partition functions |
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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 particular BPS class of AdS$_2 x S^2$ near-horizon geometry in N=2 gauged supergravity relevant both for AdS$_4$ and AdS$_5$ black holes. We consider in the large N limit the topologically twisted index of the ABJM theory and the partition function of N=4 SYM and show that they correctly reproduce the Bekenstein-Hawking entropy of the AdS$_4$ and AdS$_5$ black holes, respectively. An extremization of the partition functions 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 holes. |
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