Abstract
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.
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Gaiotto, D., Lee, J.H. & Wu, J. Integrable Kondo problems. J. High Energ. Phys. 2021, 268 (2021). https://doi.org/10.1007/JHEP04(2021)268
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DOI: https://doi.org/10.1007/JHEP04(2021)268