Multistage Kondo effect in a multiterminal geometry: A modular quantum interferometer
Mesoscale and Nanoscale Physics
2022-01-25 v2 Strongly Correlated Electrons
Abstract
Quantum systems characterized by an interplay between several resonance scattering channels demonstrate very rich physics. To illustrate it we consider a multistage Kondo effect in nanodevices as a paradigmatic model for a multimode resonance scattering. We show that the channel crosstalk results in a destructive interference between the modes. This interplay can be controlled by manipulating the tunneling junctions in the multilevel and multiterminal geometry. We present a full-fledged theory of the multistage Kondo effect at the strong-coupling Fermi-liquid fixed point and discuss the influence of quantum interference effects to the quantum transport observables.
Cite
@article{arxiv.2110.12671,
title = {Multistage Kondo effect in a multiterminal geometry: A modular quantum interferometer},
author = {D. B. Karki and Andrei I. Pavlov and Mikhail N. Kiselev},
journal= {arXiv preprint arXiv:2110.12671},
year = {2022}
}
Comments
6 pages plus supplementary information, published version (PRB, Letter)