1.00pm: New results for the Schwinger model from the lattice
1.00pm: New results for the Schwinger model from the lattice
- Event time: 12:30pm until 2:30pm
- Event date: 4th December 2024
- Speaker: Bernardo Zan (University of Cambridge)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) (James Clerk Maxwell Building (JCMB)) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Event details
Title: New results for the Schwinger model from the lattice
Abstract: 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.
About Particle Physics Theory seminars
The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..