Continuous unitary transformation approach to the Kondo-Majorana interplay
Mesoscale and Nanoscale Physics
2024-01-24 v1 Other Condensed Matter
Strongly Correlated Electrons
Computational Physics
Abstract
We analyze a setup composed of a correlated quantum dot (QD) coupled to one metallic lead and one end of topological chain hosting a Majorana zero mode (MZM). In such a hybrid structure, a leakage of the MZM into the region of the QD competes with the Kondo resonance appearing as a consequence of the spin-exchange interactions between the dot and the lead. In the work, we use the nontrivial technique called the continuous unitary transformation (CUT) to analyze this competition. Using the CUT technique, we inspect the influence of the coupling between the QD and the chain on effective exchange interactions and calculate the resultant Kondo temperature.
Keywords
Cite
@article{arxiv.2307.12356,
title = {Continuous unitary transformation approach to the Kondo-Majorana interplay},
author = {Jan Baranski and Magdalena Baranska and Tomasz Zienkiewicz and Justyna Tomaszewska and Konrad Jerzy Kapcia},
journal= {arXiv preprint arXiv:2307.12356},
year = {2024}
}
Comments
6 Pages, 5 figures