Correlation-induced resonances and population switching in a quantum dot coulomb valley
Mesoscale and Nanoscale Physics
2007-05-23 v2 Strongly Correlated Electrons
Abstract
Strong correlation effects on electron transport through a spinless quantum dot are considered. When two single-particle levels in the quantum dot are degenerate, a conserved pseudospin degree of freedom appears for general tunneling matrix elements between the quantum dot and leads. Local fluctuations of the pseudospin in the quantum dot give rise to a pair of asymmetric conductance peaks near the center of a Coulomb valley. An exact relation to the population switching is provided.
Keywords
Cite
@article{arxiv.cond-mat/0610496,
title = {Correlation-induced resonances and population switching in a quantum dot coulomb valley},
author = {Hyun-Woo Lee and Sejoong Kim},
journal= {arXiv preprint arXiv:cond-mat/0610496},
year = {2007}
}
Comments
Fig. 4 and some technical details removed. To appear in PRL