CMSA Condensed Matter/Math Seminar: Line Operators of Gauge Theories on Non-Spin Manifolds

I will talk about line operators of four-dimensional gauge theories on non-spin manifolds. Line operators correspond to worldlines of heavy classical particles. Specifying the spectrum of such particles/lines, leads to distinct physical theories with different discrete theta parameters. We propose a formula for the spin of line operators (boson or fermion), and classify gauge theories with simple Lie algebras on non-spin manifolds. We also discuss the one-form symmetries of these theories and their ‘t Hooft anomalies. This talk is based on https://arxiv.org/abs/1911.00589, jointly with J.P. Ang and Konstantinos Roumpedakis.

via Zoom Video Conferencing: https://harvard.zoom.us/s/977347126