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Statut |
Confirmé |
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Série |
RENC-THEO |
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Domaines |
hep-th |
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Date |
Jeudi 26 Novembre 2020 |
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Heure |
11:00 |
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Institut |
IHP |
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Salle |
Zoom: https://zoom.us/j/94637137722 (pwd=1234) |
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Nom de l'orateur |
Benini |
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Prenom de l'orateur |
Francesco |
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Addresse email de l'orateur |
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Institution de l'orateur |
SISSA |
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Titre |
Superconformal index and gravitational path-integral |
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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. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
- benini.pdf (514297 bytes)
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