Conformal field theory analysis for QCD Kondo effect

Abstract

We study non-perturbative aspects of QCD Kondo effect, which has been recently proposed for the finite density and strong magnetic field systems, using conformal field theory describing the low energy physics near the IR fixed point. We clarify the symmetry class of QCD Kondo effect both for the finite density and magnetic field systems, and show how the IR fixed point is non-perturbatively characterized by the boundary condition, which incorporates the impurity effect in Kondo problem. We also obtain the low temperature behavior of several quantities of QCD Kondo effect in the vicinity of the IR fixed point based on the conformal field theory analysis.

1+22 pages, 1 figure; discussion improved, refs. updated

References in corpus (7)

• The QCD equation of state in background magnetic fields
• Overscreened Kondo effect, (color) superconductivity and Shiba states in Dirac metals and quark matter
• Transport coefficients from QCD Kondo effect
• Two-point Functions in a Holographic Kondo Model
• Kondo effect of ${\bar{D}}_s$ and ${\bar{D}}_s^{\ast }$ mesons in nuclear matter
• Interplay between chiral symmetry breaking and the QCD Kondo effect
• Log-rise of the Resistivity in the Holographic Kondo Model

Cited by in corpus (19)

• Strong-Field Physics in QED and QCD: From Fundamentals to Applications
• Spin-isospin Kondo effects for ${\Sigma }_c$ and ${\Sigma }_c^{\ast }$ baryons and $\bar{D}$ and ${\bar{D}}^{\ast }$ mesons
• Emergent QCD Kondo effect in two-flavor color superconducting phase
• ABCD of Kondo effect
• Kondo effect driven by chirality imbalance
• QCD Kondo excitons
• Chiral separation effect catalyzed by heavy impurities
• Kondo effect with Wilson fermions
• Two relativistic Kondo effects: Classification with particle and antiparticle impurities
• Spin-orbital magnetic response of relativistic fermions with band hybridization
• Edge modes and boundary impurities in the anisotropic Heisenberg spin chain
• Heavy-quark spin polarization induced by the Kondo effect in a magnetic field
• Analysis of the QCD Kondo phase using random matrices
• Topological Aspects of Matters and Langlands Program
• Dirac Kondo effect under magnetic catalysis
• QCD Kondo effect for single heavy quark in chiral-symmetry broken phase
• Quantum impurity models from conformal field theory
• Yu-Shiba-Rusinov states in color superconducting quark matter
• Competing color superconductivity and color Kondo effect in quark matter