Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines hep-th
Date Jeudi 2 Juin 2022
Heure 11:00
Institut IHP
Salle 314
Nom de l'orateur Tomasiello
Prenom de l'orateur Alessandro
Addresse email de l'orateur
Institution de l'orateur
Titre On the Stability of String Theory Vacua
Résumé Vacuum compactifications may suffer from instabilities under small perturbations or bubble nucleation. While supersymmetric vacua are protected from both, it is an open question whether any non-supersymmetric AdS vacuum can be stable. We will attack this problem using positive-energy theorems. We will first see how to apply such theorems to supersymmetric vacua in M-theory and type II supergravity, rather than to their effective lower-dimensional reductions. We will then present some strategies to modify the arguments in the non-supersymmetric case. In M-theory, at the lower-derivative level, such modifications fail to stabilize the skew-whiffed and Englert vacua.
Numéro de preprint arXiv
Fichiers attachés
  • stab-paris-jun22.pdf (6142485 bytes) OPEN

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