Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines hep-th
Date Vendredi 30 Septembre 2022
Heure 14:15
Institut IPHT
Salle Salle Claude Itzykson, Bât. 774
Nom de l'orateur Severin Lüst
Prenom de l'orateur
Addresse email de l'orateur
Institution de l'orateur Harvard
Titre Holography and the KKLT Scenario
Résumé The KKLT scenario, one of the few ideas to realize dS vacua in string theory, consists of two steps: the first involves the construction of a supersymmetric AdS vacuum with a small negative cosmological constant, and the second involves breaking supersymmetry and uplifting the energy to achieve dS. In this talk I discuss conventional holography to argue why it is not possible to complete the first step. This is obtained this by putting a bound on the central charge of the dual theory which involves branes wrapping special Lagrangian cycles in CY 4-folds.
Numéro de preprint arXiv
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