Kondo effect driven by chirality imbalance

Daiki Suenaga; Kei Suzuki; Yasufumi Araki; Shigehiro Yasui

doi:10.1103/physrevresearch.2.023312

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arXiv · 1912.12669

Kondo effect driven by chirality imbalance

Daiki Suenaga·Kei Suzuki·Yasufumi Araki·Shigehiro Yasui

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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.

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Daiki Suenaga, Kei Suzuki, Yasufumi Araki, Shigehiro Yasui. 2019-12-29. Kondo effect driven by chirality imbalance. https://doi.org/10.1103/physrevresearch.2.023312

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