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


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May 7, 2020 10:30 am - 12:00 pm
via Zoom Video Conferencing

Sahand Seifnashri - Stony Brook University

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, jointly with J.P. Ang and Konstantinos Roumpedakis.

via Zoom Video Conferencing: