Seminar series
Date
Wed, 25 Mar 2026
Time
11:00 -
13:00
Location
L4
Speaker
Leonard Ferdinand
Organisation
Max Planck Institute for Mathematics in the Sciences
I will review how the large N expansion can be used in the context of the renormalisation group to probe some strongly coupled regimes. In particular, I will discuss a work by Gawedzki and Kupiainen where the authors study the three-dimensional non-Gaussian infrared fixed point of Phi^4 in the case of a hierarchical model of rank-one covariance, and explain how their approach could generalise to more realistic models.
This is a joint work with Ajay Chandra.