Speaker
Matías Torres Sandoval
(Università Napoli Federico ii)
Description
In this talk, I will focus on two different methods that allow us to go beyond standard perturbation theory: the large charge expansion and resurgence. In particular, I will talk about the scaling dimension associated to charged operators in the O(N) model near d=4 and d=3 and monopoles operators in QED3. I will present their analytic structure for large and small values of the charge and discuss the non-perturbative corrections to these objects using resurgence techniques.
