Statut | Confirmé |
Série | RENC-THEO |
Domaines | hep-th |
Date | Jeudi 1 Décembre 2016 |
Heure | 10:00 |
Institut | IHP |
Salle | 201 |
Nom de l'orateur | Andriot |
Prenom de l'orateur | David |
Addresse email de l'orateur | |
Institution de l'orateur | AEI Potsdam-Golm & Humboldt University |
Titre | On classical de Sitter and Minkowski string backgrounds |
Résumé | Standard paths to connect string theory to cosmology or particle physics require to find backgrounds where the space-time is a product of de Sitter or Minkowski space-time and a compact manifold. We study the existence of such backgrounds at the classical level, in the framework of type II supergravities with parallel orientifolds and D-branes. For de Sitter, we obtain highly constraining no-go theorems; it allows us to exclude a stringy realisation of a particular inflation scenario. For Minkowski, we characterise a broad class of solutions, that possibly encounters for all such backgrounds. |
Numéro de preprint arXiv | |
Commentaires | |
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