Narain CFTs from quantum codes and their gauging
arXiv:2308.01579
Abstract
We investigate the gauging of a symmetry in Narain conformal field theories (CFTs) constructed from qudit stabilizer codes. Considering both orbifold and fermionization, we establish a connection between gauging procedures and modifications of the momentum lattice by vectors characterizing the symmetry. We also provide three-dimensional interpretations of gaugings through abelian Chern-Simons theories, which act as symmetry topological field theories.
61 pages, 8 figures; v2: addition and minor correction in section 5, references added; v3: minor change; v4: published version