Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série PT-IHES
Domaines hep-th
Date Jeudi 7 Décembre 2023
Heure 14:00
Institut IHES
Salle Amphitheatre Leon Motchane
Nom de l'orateur Yu
Prenom de l'orateur Matthew
Addresse email de l'orateur
Institution de l'orateur Oxford University et IHES
Titre U-duality Anomaly Cancelation
Résumé Theories of quantum gravity are believed to have no global symmetries. We will check this conjecture for the U-duality symmetry in 4d N=8 supergravity. Since this theory arises from string theory, the 't Hooft anomaly for this symmetry ought to vanish. We then perform a bordism computation to classify the anomaly of U-duality and notice an interesting fact about the particular Thom spectrum that we use for the computation. Finally we show that evaluating the anomaly for our particular theory on the generating manifold of the bordism group leads to it vanishing.
Numéro de preprint arXiv
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