English

Kondo effect driven by chirality imbalance

High Energy Physics - Phenomenology 2020-07-01 v2 Mesoscale and Nanoscale Physics Strongly Correlated Electrons

Abstract

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 a right- or left-handed fermion and a heavy impurity in the chirality imbalanced matter even at zero density. This is different from the usual Kondo effect induced by finite density. We derive the Kondo effect from both a perturbative calculation and a mean-field approach. We also discuss the temperature dependence of the Kondo effect. The Kondo effect at nonzero chiral chemical potential can be tested by future lattice simulations.

Keywords

Cite

@article{arxiv.1912.12669,
  title  = {Kondo effect driven by chirality imbalance},
  author = {Daiki Suenaga and Kei Suzuki and Yasufumi Araki and Shigehiro Yasui},
  journal= {arXiv preprint arXiv:1912.12669},
  year   = {2020}
}

Comments

15 pages, 8 figures

R2 v1 2026-06-23T12:58:26.787Z