Statut | Confirmé |
Série | RENC-THEO |
Domaines | hep-th |
Date | Jeudi 21 Septembre 2017 |
Heure | 11:45 |
Institut | IHP |
Salle | Room 314 |
Nom de l'orateur | Paulos |
Prenom de l'orateur | Miguel |
Addresse email de l'orateur | |
Institution de l'orateur | LPTENS |
Titre | The S-matrix strikes back |
Résumé | In this talk I will describe recent work aiming to reinvigorate the 50 year old S-matrix program, which seeks to constrain scattering of massive particles non-perturbatively. I will begin by considering quantum fields in anti-de Sitter space and show that one can extract information about the S-matrix by considering correlators in conformally invariant theories. The latter can be studied with "bootstrap" techniques, which allow us to constrain the S-matrix. I will also show that this can be done directly, without using the CFT crutch, by using crossing symmetry and unitarity and a particular ansatz. In this way we derive universal bounds on QFTs in 2,3 and 4 dimensions. |
Numéro de preprint arXiv | |
Commentaires | |
Fichiers attachés |
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