11th Bologna Workshop on Conformal Field Theory and Integrable Models

Constraints on RG flows between 2D CFT from generalized symmetries

4 Sept 2025, 09:40

25m

Aula Magna (Dept. of Physics and Astronomy - University of Bologna)

Talk (25 min) Talks

Speaker

Federico Ambrosino (DESY/Perimeter Institute)

Description

In this talk I will present some recent advances on understanding RG flows between 2d CFT by employing non-invertible (generalized) symmetries.

After introducing the formalism of non-invertible symmetries, I will illustrate how the matching of their 't Hooft anomalies puts strong constraints on the RG group flow from perturbed UV fixed 2D CFT.
I will then focus on the specific case of Virasoro Minimal models, discussing the results of 2501.07511 with Stefano Negro.

If time permits, I will also present some work in progress with Tomáš Procházka where we extend this formalism to study and predicts RG flows between minimal models of Corner Vertex Algebras, such that $W_N$ minimal models.

Presentation materials

RG_flows_Minimal_Models.pdf