31 Mar/20
14:00 - 16:00 (Europe/Zurich)

Random Field Ising Model and Parisi-Sourlas Supersymmetry


zoom only at CERN

Zoom virtual seminar:  https://cern.zoom.us/j/413675719


We will discuss the phase transition in the Ising model with magnetic impurities. By one kind of lore, this leads to a non-unitary supersymmetric CFT with scalar supercharges (Parisi-Sourlas supersymmetry). By further lore, Parisi-Sourlas SCFT in D dimensions is equivalent to a non-SUSY CFT in D-2 dimensions. It is known that this story is not fully correct, but we will put at least some of it on firmer ground using non-perturbative CFT methods. Joint work with Apratim Kaviraj and Emilio Trevisani.