01.12.2023, 11:00
– Campus Golm, Building 9, Room 2.22
Forschungsseminar Analysis
Post-Lie algebra of derivations and regularity structures
Jean-David Jacques (Potsdam)
Kasia Rejzner (York)
In this talk, I will present how the formal S-matrix and the interacting fields are constructed in the framework of perturbative algebraic quantum field theory (pAQFT). I will illustrate this on the example of the sine-Gordon model in 2 dimensions, where these objects are shown to converge as infinite series, for appropriate range of values of the coupling constant.