Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série STR-LPT-ENS-HE
Domaines hep-th
Date Mardi 18 Décembre 2018
Heure 11:30
Institut LPTENS
Salle LPTENS library
Nom de l'orateur Mazac
Prenom de l'orateur Dalimil
Addresse email de l'orateur
Institution de l'orateur Stony Brook
Titre A crossing-symmetric OPE inversion formula
Résumé I will discuss a new Lorentzian OPE inversion formula for the principal series of SL(2,R). Unlike the standard Lorentzian inversion formula in higher D, the new formula makes crossing symmetry manifest. In particular, inverting a single conformal block in the crossed channel returns the coefficient function of the crossing-symmetric sum of Witten exchange diagrams in AdS_2, including the direct-channel exchange. In this way, the inversion formula leads to a derivation of the Polyakov-Mellin bootstrap for SL(2,R). Furthermore, the formula directly gives rise to analytic extremal functionals which have appeared in recent literature, unifying them to a single object.
Numéro de preprint arXiv 1812.02254
Commentaires
Fichiers attachés

Pour obtenir l' affiche de ce séminaire : [ Postscript | PDF ]

[ Annonces ]    [ Abonnements ]    [ Archive ]    [ Aide ]    [ ]
[ English version ]