Statut | Confirmé |
Série | STR-LPT-ENS-HE |
Domaines | hep-th |
Date | Mardi 23 Octobre 2018 |
Heure | 10:30 |
Institut | LPTHE |
Salle | LPTHE library |
Nom de l'orateur | Eberhardt |
Prenom de l'orateur | Lorenz |
Addresse email de l'orateur | |
Institution de l'orateur | ETH Zurich |
Titre | Holography on AdS3xS3xS3xS1 and stringy AdS3 spectra |
Résumé | The purpose of the talk is twofold. I will first report on progress made on the problem of finding a holographic dual of the large N=4 background AdS3xS3xS3xS1. I will discuss the BPS spectrum of the background in detail, both from a string theory and a supergravity point of view. This allows us to make a proposal for the CFT dual, at least for specific values of the fluxes. In a second part of the talk, I will discuss the string theory spectrum on AdS3 backgrounds away from the pure NS-NS flux point, where a WZW description of the worldsheet theory exists. The theory with R-R flux can be described in the hybrid formalism by a sigma-model on a supergroup coupled to ghosts. I will explain how to solve this sigma-model in the plane-wave limit and reproduce the plane-wave spectrum from the hybrid formalism. |
Numéro de preprint arXiv | |
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