We theoretically study the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between
magnetic impurities in both Dirac and Weyl semimetals (SMs). We find that the internode …

Three-dimensional topological Dirac semimetals have hitherto stimulated unprecedented
research interests as a new class of quantum materials. Breaking certain types of …

We develop a mean-field theory of a novel Kondo effect emerging in systems without a
Fermi surface, which instead emerges under strong magnetic fields. We determine the …

We study the interplay between the Kondo effect and (color) superconductivity in doped
Dirac metals with magnetic impurities and in quark matter with colorful impurities. We first …

We study the RKKY interaction between two magnetic impurities located on the surface of a
three-dimensional Dirac semimetal with two Dirac nodes in the band structure. By taking into …

Multi-Weyl semimetals are new types of topological semimetals which have anisotropic
nonlinear energy dispersion and whose topological charge can be 2 or more depending on …

We investigate the Kondo effect of the Fermi arcs in a time-reversal-invariant Weyl
semimetal with the variational method. To show the consequence brought out by the …

We investigate the Kondo effect with Wilson fermions. This is based on a mean-field
approach for the chiral Gross-Neveu model including four-point interactions between a light …

We propose a novel mechanism of the Kondo effect driven by a chirality imbalance (or chiral
chemical potential) of relativistic light fermions. This effect is realized by the mixing between …

We consider the quantum chromodynamics (QCD) Kondo effect for a single heavy quark in
quark matter composed of light quarks with chiral symmetry breaking. Introducing several …