Speaker
Prof.
Tatsuhiro Misumi
Description
Quantum field theories on the circle-compactified spacetime are quite worth
investigating in terms of finite-T physics, resurgence theory and volume
independence. In particular, several evidences indicate that the
compactified theories with ZN-twisted boundary condition maintain the
vacuum structure of the original uncompactified theory. We discuss this
property, called adiabatic continuity, and its implication on resurgence
theory by looking into a couple of theories including CP^{N-1} model,
Schwinger model, flag sigma model, and 4d QCD. The weapons we use in this
talk include semiclassical analysis, 't Hooft anomaly matching, and lattice
simulations.
