How non-perturbative physics can resurge from perturbation theory

May 18, 2016, 3:45 PM



Mrs Saskia DEMULDER (Vrije Universiteit Brussel)


Important features of physical systems; non-perturbative phenomena, cannot be captured by the most wildly used tool in physics: perturbation theory. Perturbation theory is indeed inherently not complete answer. In QCD for example, the growing number of diagrams implies that perturbation theory does not give a finite result to physical quantities or cannot explain the appearance of a mass scale.

Quiet surprisingly there is growing evidence that non-perturbative effect are actually captured by perturbation theory. This talk will introduce the audience to how non-perturbative effect can ‘resurge’ from perturbative data. This technique of resurgence can be used to investigate the non-perturbative sector of exactly solvable models in two dimensional Quantum Field Theory.

Primary authors

Prof. Daniel THOMPSON (Vrije Universiteit Brussel) Dr Daniele DORIGONI (Durham University) Mrs Saskia DEMULDER (Vrije Universiteit Brussel)

Presentation materials