Transport through a quantum dot with two parallel Luttinger liquid leads
Mesoscale and Nanoscale Physics
2015-05-27 v1 Strongly Correlated Electrons
Abstract
We study transport through a quantum dot side-coupled to two parallel Luttinger liquid leads in the presence of a Coulombic dot-lead interaction. This geometry enables an exact treatment of the inter-lead Coulomb interactions. We find that for dots symmetrically disposed between the two leads the correlation of charge fluctuations between the two leads can lead to an enhancement of the current at the Coulomb-blockade edge and even to a negative differential conductance. Moving the dot off center or separating the wires further converts the enhancement to a suppression.
Cite
@article{arxiv.1102.5045,
title = {Transport through a quantum dot with two parallel Luttinger liquid leads},
author = {Florian Elste and David Reichman and Andrew Millis},
journal= {arXiv preprint arXiv:1102.5045},
year = {2015}
}