1–5 Sept 2026
University of Sussex
Europe/London timezone

Perturbatively Exact Fixed Points in Three Dimensions

1 Sept 2026, 14:00
20m
144 (Jubilee Building)

144

Jubilee Building

Speaker

Tom Steudtner

Description

I will report about recent progress to systematise the search for non-trivial fixed points in three dimensions. I revisit the stability of the UV fixed point in purely scalar theories using perturbation theory. I will discuss how the results are compatible with FRG, and address an old controversy in the literature. Furthermore, scalar-fermionic theories are investigated up to four-loop order, and a novel class of IR fixed points under strict perturbative control is identified.

Affiliation TU Dortmund
Career status Postdoc

Authors

Presentation materials