Speaker
Mr
Atis Yosprakob
Description
The tensor renormalization group method is a powerful tool to study
lattice models, which works even with models that have sign problem.
However, so far, its application to gauge theory has been restricted the
U(1) and SU(2) cases. In this work, we apply it to two-dimensional U(N)
gauge theories which are exactly solvable. We are able to extract the
large-N behaviors of the model such as the Eguchi-Kawai reduction and
the Gross-Witten phase transition. We also study the model with a theta-
term, which has the sign problem, and reproduce exact results.
