Statut  Confirmé 
Série  IPHTMAT 
Domaines  hepth 
Date  Mercredi 21 Novembre 2018 
Heure  14:15 
Institut  IPHT 
Salle  Salle Claude Itzykson, Bât. 774 
Nom de l'orateur  Pierre Corvilain 
Prenom de l'orateur  
Addresse email de l'orateur  
Institution de l'orateur  Utrecht University 
Titre  Anomalies on a circle and Infinite distance in Kaehler moduli space in Ftheory 
Résumé  We consider a 4D theory with a chiral anomaly, on $R^3 \times S^1$. From the 3D perspective, it seems at first that the anomaly is lost since odd dimensions do not allow for local anomalies. However the anomaly cannot simply disappear, and by choosing a regulator that preserves the symmetries of the UV (4D lorentz invariance in this case) in order to integrate out the KKmodes, we show that fielddependant ChernSimons terms are generated at one loop. These are not gauge invariant and in fact capture the whole 4D anomaly, in a 3D language. We further extend these results to 6D anomalies and comment on the implications for Ftheory compactifications. Integrating out the KKmodes also leads infinite distance in radius modulus space. We explain how this relates to the Swampland Distance Conjecture and the idea of emergence. We then apply this to the Ftheory circle and explain how it relates to infinite distances in the Kaehler moduli space of the CalabiYau threefold on which Ftheory is compactified. These singularities can be analyzed from their monodromy matrix, which depends on the intersection number of the CY. This suggests that some topological data of the CY are emergent. 
Numéro de preprint arXiv  
Commentaires  
Fichiers attachés 
Pour obtenir l' affiche de ce séminaire : [ Postscript  PDF ]

[ English version ] 