Statut | Confirmé |
Série | SEM-CPHT |
Domaines | hep-th |
Date | Jeudi 21 Mars 2019 |
Heure | 11:00 |
Institut | CPHT |
Salle | Salle de Conference Louis Michel (Bât.6 CPHT) |
Nom de l'orateur | Cassani |
Prenom de l'orateur | Davide |
Addresse email de l'orateur | |
Institution de l'orateur | Padua U. |
Titre | On the holographic origin of the Bekenstein-Hawking entropy of 1/16 BPS AdS_5 black holes |
Résumé | Providing a microscopic derivation of the entropy of supersymmetric asymptotically AdS_5 black holes has been an open problem for 15 years. In the talk I will present progress in this direction. On the gravity side of the AdS/CFT correspondence, I will describe a BPS limit of black hole thermodynamics by first focussing on a supersymmetric family of complexified solutions and then reaching extremality. In this limit the black hole entropy is the Legendre transform of the on-shell gravitational action with respect to a set of chemical potentials subject to a specific constraint. The latter follows from supersymmetry and regularity in the Euclidean bulk geometry. The gravitational analysis instructs us that the dual N=1 superconformal field theory is defined on a twisted S^1 x S^3 with complexified chemical potentials obeying the constraint, and localization allows to compute the corresponding partition function exactly. This computation defines a generalization of the supersymmetric Casimir energy, whose Legendre transform at large N precisely reproduces the Bekenstein- Hawking entropy of the black hole. |
Numéro de preprint arXiv | |
Commentaires | |
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