QCD Kondo effect under magnetic field

The Kondo effect is known as a remarkable quantum many-body effect induced by a condensate made of heavy and light fermions. Recently, it has been discussed that the effect can play significant roles in QCD medium as well, which is referred to as the QCD Kondo effect. In this talk, I explain how the QCD Kondo effect emerges in medium under a magnetic field, and review typical phase diagrams of the QCD Kondo effect. Besides, I present prominent transport phenomena driven by the effect such as the enhanced chiral separation effect (CSE) and the heavy-quark spin polarization (HQSS). I also discuss the possibility of observing the QCD Kondo effect under a magnetic field in experiments.