February 25, 2025

Speaker: Giovanni Galati (U. Brussels)

Title:  Topological Constraints on Defect Dynamics

Abstract: Extended objects (defects) in Quantum Field Theory exhibit rich and nontrivial dynamics, describing a variety of physical phenomena. These systems often involve strong coupling at long distances, where the interaction between the bulk and defects makes analytical studies challenging. In this talk, I will discuss how the behavior of bulk symmetries in the presence of defects can strongly constrain their dynamics. In particular, I will introduce new RG-invariant quantities that can be tracked along the defect RG flow and used to make predictions about the possible IR behavior of such extended defects. Based on joint work with A. Antinucci, C. Copetti, and G. Rizi [2412.18652].