Kondo effects and shot noise enhancement in a laterally coupled double quantum dot
Mesoscale and Nanoscale Physics
2015-05-20 v1 Strongly Correlated Electrons
Abstract
The spin and orbital Kondo effects and the related shot noise for a laterally coupled double quantum dot are studied taking account of coherent indirect coupling via a reservoir. We calculate the linear conductance and shot noise for various charge states to distinguish between the spin and orbital Kondo effects. We find that a novel antiferromagnetic exchange coupling can be generated by the coherent indirect coupling, and it works to suppress the spin Kondo effect when each quantum dot holds just one electron. We also show that we can capture the feature of the pseudospin Kondo effect from the shot noise measurement.
Keywords
Cite
@article{arxiv.1012.4838,
title = {Kondo effects and shot noise enhancement in a laterally coupled double quantum dot},
author = {Toshihiro Kubo and Yasuhiro Tokura and Seigo Tarucha},
journal= {arXiv preprint arXiv:1012.4838},
year = {2015}
}
Comments
11 pages, 5 figures, accepted for publication in Physical Review B