PIRSA:20100057

Resurgence and Phase Transitions

APA

Dunne, G. (2020). Resurgence and Phase Transitions. Perimeter Institute. https://pirsa.org/20100057

MLA

Dunne, Gerald. Resurgence and Phase Transitions. Perimeter Institute, Oct. 20, 2020, https://pirsa.org/20100057

BibTex

          @misc{ pirsa_PIRSA:20100057,
            doi = {10.48660/20100057},
            url = {https://pirsa.org/20100057},
            author = {Dunne, Gerald},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Resurgence and Phase Transitions},
            publisher = {Perimeter Institute},
            year = {2020},
            month = {oct},
            note = {PIRSA:20100057 see, \url{https://pirsa.org}}
          }
          

Gerald Dunne

University of Connecticut

Talk number
PIRSA:20100057
Abstract

There are several important conceptual and computational questions concerning path integrals in QM and QFT, which have recently been approached from new perspectives motivated by "resurgent asymptotics", a novel mathematical formalism that seeks to unify perturbative and non-perturbative physics. I will discuss the basic ideas behind the connections between resurgent asymptotics and physics, ranging from differential equations to phase transitions and QFT. I will also discuss the reconstruction problem: how to optimally reconstruct non-perturbative information from a finite amount of perturbative information.