Non-Invertible Duality Interfaces in Field Theories with Exotic Symmetries

I discuss analogs of Kramers-Wannier duality line in fracton-inspired field theories with subsystem and dipole symmetries. These are obtained by gauging the indicated symmetry on half of spacetime. I discuss their fusion rules, carefully distinguishing defects extended in time and operators that are not, as well as the impact of lattice cutoffs on the resulting physics. This work is an application of recent ideas in formal high energy theory to non-relativistic field theories relevant for condensed matter physics.