Statut  Confirmé 
Série  RENCTHEO 
Domaines  hepth 
Date  Jeudi 21 Fevrier 2019 
Heure  11:40 
Institut  IHP 
Salle  314 
Nom de l'orateur  Valenzuela 
Prenom de l'orateur  Irene 
Addresse email de l'orateur  
Institution de l'orateur  University of Utrecht 
Titre  The String Swampland and Emergence of Global Symmetries 
Résumé  Consistency with quantum gravity can have significant consequences on low energy physics. Interestingly, it seems that not every effective field theory can be consistently coupled to quantum gravity unless it satifies some additional consistency constraints dubbed Swampland constraints. In this talk, I will revisit such constraints and their emergence as a quantum gravity obstruction to restore global symmetries. I will then focus on the Swampland Distance Conjecture for which infinite distances in field space imply an infinite tower of states becoming exponentially light. We present new string theory evidence for this conjecture in CalabiYau manifolds, by studying the monodromy discrete symmetries associated to the infinite distance singularities in the moduli space. This monodromy generates an infinite orbit within the spectrum of BPS states and allow us to classify the different types of infinite distance loci. We apply the results to the complex structure and Kahler moduli spaces of Type II and M/Ftheory compactifications. 
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