Holographic RG Flows for Kondo-like Impurities

Understand

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 $d = 1$ $\mathcal{N} = 4$ supersymmetry and flows to conformal fixed points in both the UV and IR.