[NT/RBRC seminar] Gauge Theories in 3d and 4d: A few more nonperturbative steps

by Prof. Parameswaran Nair (City college of the CUNY)

Friday 9 Jun 2023, 11:00 → 13:00 US/Eastern

Large seminar room (https://bnl.zoomgov.com/j/1614715193?pwd=WkwxODVWdzZzb29zQnZRVGp3VTBDQT09)

There are parametrizations of nonabelian gauge fields on complex spaces which facilitate nonperturbative analyses. In three dimensions this has led to analytic predictions for the string tension. I will update the status of this including corrections and then discuss a new observable, the Casimir energy. I will argue that the Casimir energy could be a good probe of the magnetic mass for the quark-gluon plasma. I will review the lattice comparison for the 3d case and then discuss a similar strategy for gauge theories. A key feature in four dimensions is the emergence of a kinematic sector controlled by a 4d WZW theory.