Center for Theoretical Physics of the Universe (CTPU-PTC)

Symmetry Topological field theory for Subsystem symmetry

by Qiang Jia (KIAS)

Asia/Seoul
Seminar Room (CTPU)

Seminar Room

CTPU

Description
We generalize the idea of symmetry topological field theory (SymTFT) to subsystem symmetry. We propose the 2-foliated BF theory with level N in (3+1)d as subsystem SymTFT for subsystem Z_N symmetry in (2+1)d.  Focusing on N=2, we investigate various topological boundaries. The subsystem Kramers-Wannier and Jordan-Wigner dualities can be viewed as boundary transformations of the subsystem SymTFT and are included in a larger duality web from the subsystem SL(2,Z_2) symmetry of the bulk foliated BF theory.