Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série STR-LPT-ENS-HE
Domaines hep-th
Date Mardi 11 Avril 2017
Heure 11:00
Institut LPTENS
Salle LPTENS Library
Nom de l'orateur Keller
Prenom de l'orateur Christoph
Addresse email de l'orateur
Institution de l'orateur ETH Zurich
Titre Mathieu Moonshine and Symmetry Surfing
Résumé I will give a brief introduction to moonshine, the surprising connection between modular forms and sporadic simple groups. I will quickly discuss the original monstrous moonshine, and then talk about the more recently discovered Mathieu moonshine. I will explain why the explanation of the original moonshine most likely does not work for this new type of moonshine. I will then discuss a proposed explanation due to Taormina and Wendland, namely the idea of `symmetry surfing', i.e. combining the symmetries of different K3 sigma models. I will present some new results which provide evidence that symmetry surfing should work also for all higher BPS states. This is based on work with Matthias Gaberdiel and Hynek Paul.
Numéro de preprint arXiv
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