Status | Confirmed |
Seminar Series | SEM-CPHT |
Subjects | hep-th |
Date | Thursday 21 March 2019 |
Time | 11:00 |
Institute | CPHT |
Seminar Room | Salle de Conference Louis Michel (Bât.6 CPHT) |
Speaker's Last Name | Cassani |
Speaker's First Name | Davide |
Speaker's Email Address | |
Speaker's Institution | Padua U. |
Title | On the holographic origin of the Bekenstein-Hawking entropy of 1/16 BPS AdS_5 black holes |
Abstract | 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. |
arXiv Preprint Number | |
Comments | |
Attachments |
To Generate a poster for this seminar : [ Postscript | PDF ]
[ Bulletin Board ] [ Subscription ] [ Archive] [ Help ] [ ] | [ Version francaise ] |