У оквиру семинара Групе за гравитацију, честице и поља, у четвртак, 6. марта 2025. године у 11 часова у сали 360 Института за физику у Београду, Душан Новичић (Макс Планк институт за физику у Минхену) одржаће предавање:
SymTFT for Axion Electrodynamics
САЖЕТАК:
The concept of symmetry in QFT has been generalised in the last decade by identifying symmetry with topological defects. SymTFT, a particular topological field theory that captures symmetries as well as
„discrete“ operations on qft, emerged as a very useful tool. In this talk we will study Axion Electrodynamics, a relatively simple model with a very rich symmetry structure, including higher groups and noninvertible symmetries. We will describe explicitely its symmetry topological field theory and describe how it sees all the structure, including some anomalies that are hard to see otherwise. Time permitting we will describe a mathematical formalism that is particularly useful for continuous symmetries. The talk is based on the work in progress with Markus Dierigl.