Statut  Confirmé 
Série  IPHTMAT 
Domaines  hepth 
Date  Mercredi 2 Octobre 2024 
Heure  14:15 
Institut  IPHT 
Salle  Pièce 026, Bât. 774 
Nom de l'orateur  Severin Lüst 
Prenom de l'orateur  
Addresse email de l'orateur  
Institution de l'orateur  U. Montpellier 
Titre  An index for flux vacua 
Résumé  One of the main challenges for string theory phenomenology is to reliable identify consistent fourdimensional vacua of string theory with low or broken supersymmetry. This task is difficult as one expects no such vacua in the asymptotic limits where one sends all coupling constants to zero or (equivalently) all moduli fields to infinity. On the other hand, once these fields take finite values there exist various quantum and string corrections to the lowenergy effective action that are difficult to compute and often unknown. In this talk I will propose an index formulation based on contour integration techniques that relates the existence of critical points of effective potentials to their behaviour at the asymptotic boundaries of field space. I will demonstrate this technique for the specific example of IIB / Mtheory flux compactifications with a onedimensional complex structure moduli space and the resulting N=1 supersymmetric Fterm potential. 
Numéro de preprint arXiv  
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