Statut | Confirmé |
Série | RENC-THEO |
Domaines | hep-th |
Date | Jeudi 11 Avril 2024 |
Heure | 11:45 |
Institut | IHP |
Salle | 314 |
Nom de l'orateur | Zan |
Prenom de l'orateur | Bernardo |
Addresse email de l'orateur | |
Institution de l'orateur | University of Cambridge |
Titre | New results for the Schwinger model from the lattice |
Résumé | Lattice methods are of fundamental importance when dealing with strongly coupled QFTs. I will consider one of the simplest gauge theories, the Schwinger model (QED in 1+1 dimensions) with one or more fermion flavors. This theory is solvable only if the fermions are massless; if they are massive we need to resort to numerical methods, such as Kogut-Susskind staggered fermions. I will improve this lattice implementation of the Schwinger model by considering the chiral anomaly on the lattice; this will imply that the relation between lattice and continuum parameters is subtle. The correct identification of the parameters will greatly improve numerical convergence, and I wll use this to obtain new quantitative and qualitative results, e.g. the phase diagram of the two flavor Schwinger model at zero temperature. |
Numéro de preprint arXiv | |
Commentaires | |
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