Event

Talk
Resurgence and Non-Perturbative Physics
Prof. Gerald Dunne ( University of Connecticut)
5 May 2014, 15:30 – 16:30

"Resurgent" semiclassical analysis, a systematic unification of
perturbative and non-perturbative sectors, can be applied to resolve
fundamental problems in quantum theories with degenerate minima.
Expansions about different saddle points are quantitatively related to one
another in a precise manner. Illustrations include double-well and
periodic potentials in QM, and asymptotically free QFTs such as CPN and
Yang-Mills, where this resurgent approach yields a new semiclassical
interpretation of IR renormalons.