Speaker
Mithat Unsal
(North Carolina State University)
Description
This talk presents a summary of our current understanding of confinement problem in non-abelian gauge theories. It is dedicated to the memory of Pierre van Baal, who contributed to the field significantly.
I will review recent semi-classically calculable realization of confinement in various gauge theories. In particular, I will describe the role of monopole-instantons(realized by van Baal), and their role in neutral and magnetic bions, and the relation of these semi-classical saddles to 't Hooft's elusive renormalon problem. The techniques I describe uses resurgence theory, and related Lefschetz thimble (homology cycle) decomposition of path integrals.
Author
Mithat Unsal
(North Carolina State University)
