The O(N)-flavoured replica twist defect
arXiv:2304.08116 · doi:10.1007/JHEP07(2023)022
Abstract
Replica twist defects are of codimension two and enter in quantum information when finding the Rényi entropy. In particular, they generate n replicas of the bulk conformal field theory. We study the monodromy of such defect and learn how a global O(N)-symmetry is broken. By applying the equation of motion to the bulk-defect operator-product expansion we are able to extract the anomalous dimension of defect-local fields.
11 pages, 0 figues