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 ]
|
[ English version ] |