2020/03/31 by Davide Gaiotto, Ji Hoon Lee, Jingxiang Wu · 2 citations
Physics and Astronomy · #hep-th #cond-mat.str-el
paper · pdf · doi:10.1007/jhep04(2021)268
33 pages + appendix; v2: references added
arxiv created 2021/02/03 · arxiv updated 2021/05/12
We discuss the integrability and wall-crossing properties of Kondo problems, where an 1d impurity is coupled to a 2d chiral CFT and triggers a defect RG flow. We review several new and old examples inspired by constructions in four-dimensional Chern-Simons theory and by affine Gaudin models.