[phys4phys] Group for Gravitation, Particles and Fields seminar, Thursday, 6 March 2025

[prlina]

Dear colleagues,

You are cordially invited to the seminar of the Group for Gravitation, 
Particles and Fields, which will be held on Thursday, 6 March 2025, at 
11:00 at the Institute of Physics Belgrade, lecture hall 360. Please 
note that the seminar time is different than usual in order to 
accommodate the lecturer's schedule.

The talk entitled:

SymTFT for Axion Electrodynamics

will be given by Dušan Novičić (Max Planck Institute for Physics, 
Munich).

Abstract: 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.

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Time: March 6, 2025 11:00 Belgrade

Institute of Physics Belgrade, lecture hall 360, 2nd floor

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Best regards,
Igor Prlina