Topological defects in general quantum LDPC codes
arXiv:1910.09646 · doi:10.1142/9789811231711_0003
Abstract
We consider the structure of defects carrying quantum information in general quantum low-density parity-check (LDPC) codes. These generalize the corresponding constructions for topological quantum codes, without the need for locality. Relation of such defects to (generalized) topological entanglement entropy is also discussed.
arXiv comment12 pages, 1 figure