Description
This is the second of a two-part talk on non-invertible symmetries in Maxwell theory in four dimensions. The first will be given by Konstantinos Roumpedakis.
I will show how to realize topological codimension-one defects in Maxwell theory with a constructive Lagrangian approach.
While the action of such defects on local operators is invertible, the action on line operators is generically non-invertible.
