Holographic RG flows for Kondo-like impurities

@article{Erdmenger2020HolographicRF,
  title={Holographic RG flows for Kondo-like impurities},
  author={Johanna Erdmenger and Charles M. Melby-Thompson and Christian Northe},
  journal={Journal of High Energy Physics},
  year={2020},
  volume={2020},
  pages={1-62}
}
Boundary, defect, and interface RG flows, as exemplified by the famous Kondo model, play a significant role in the theory of quantum fields. We study in detail the holographic dual of a non-conformal supersymmetric impurity in the D1/D5 CFT. Its RG flow bears similarities to the Kondo model, although unlike the Kondo model the CFT is strongly coupled in the holographic regime. The interface we study preserves d = 1 N $$ \mathcal{N} $$ = 4 supersymmetry and flows to conformal fixed points in… 
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