Statut | Confirmé |
Série | RENC-THEO |
Domaines | hep-th |
Date | Jeudi 26 Novembre 2020 |
Heure | 11:00 |
Institut | IHP |
Salle | Zoom: https://zoom.us/j/94637137722 (pwd=1234) |
Nom de l'orateur | Benini |
Prenom de l'orateur | Francesco |
Addresse email de l'orateur | |
Institution de l'orateur | SISSA |
Titre | Superconformal index and gravitational path-integral |
Résumé | AdS/CFT provides a consistent non-perturbative definition of quantum gravity in asymptotically AdS spacetimes. Black holes should correspond to ensembles of states in the boundary field theory. By performing a careful analysis of the superconformal index of 4d N=4 SU(N) Super-Yang-Mills theory, with the help of a Bethe Ansatz type formula, we are able to exactly reproduce the Bekenstein-Hawking entropy of BPS black holes in AdS5 x S5. The large N limit exhibits many competing contributions, that we are able to identify with complex saddles of the (putative) gravitational path-integral. Along the way we propose a necessary condition for complex saddles to contribute, based on the size of their non-perturbative corrections. Such a prescription exactly matches the field theory analysis. |
Numéro de preprint arXiv | |
Commentaires | |
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