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High Energy Theory Seminar

Friday, April 7, 2023
11:00am to 12:00pm
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Online and In-Person Event
Mass shift in lattice Hamiltonian approach to Schwinger model
Silviu Pufu, Princeton University,

The Schwinger model, or quantum electrodynamics in 1+1 dimensions, is one of the simplest gauge theories. In this talk, I will first review a standard lattice discretization of the one-flavor Schwinger model using the Kogut-Susskind Hamiltonian approach with staggered fermions. I will then present a new relation between the lattice and continuum mass parameters, and show how this relation significantly improves the continuum extrapolations of various quantities computed on the lattice.  Lastly, I will also discuss aspects of the two-flavor Schwinger model and its phase diagram.

In person attendees (469 Lauritsen) must have a valid Caltech ID.

Contact [email protected] for Zoom information.