Kondo Effect of Quantum Dots in the Quantum Hall Regime

TL;DR

This paper explores the emergence of a Kondo effect in quantum dots within the quantum Hall regime, analyzing its properties through scaling and numerical methods, and proposing an experimental investigation.

Contribution

It introduces a novel Kondo effect arising from degenerate many-body states in quantum Hall quantum dots and maps it to a standard Kondo model with a fictitious magnetic field.

Findings

Identification of a Kondo effect in quantum Hall quantum dots.

Analysis of the Kondo effect's properties using scaling and numerical renormalization group.

Proposal for an experiment to observe this Kondo phenomenon.

Abstract

Quantum dots in the quantum Hall regime can have pairs of single Slater determinant states that are degenerate in energy. We argue that these pairs of many body states may give rise to a Kondo effect which can be mapped into an ordinary Kondo effect in a fictitious magnetic field. We report on several properties of this Kondo effect using scaling and numerical renormalization group analysis. We suggest an experiment to investigate this Kondo effect.