On co-dimension two defect operators
arXiv:1611.02485
Abstract
Conformal symmetry is broken by a flat or spherical defect operator . We show that this defect operator, may be identified as a pair of twist operators which are inserted at the tips of its causal diamond. Any point correlation function in a flat or spherical defect CFT is equivalent to a point correlation function. We reproduce one point correlation functions and also solve two point correlation functions in defect CFTs . Mutual Rényi entropy is computed and agrees with previous result in a certain limit. We conjecture there may be universal terms in general co-dimension two defect CFTs.
27 pages, 3 figures