Weak Coulomb blockade effect in quantum dots
Mesoscale and Nanoscale Physics
2009-11-10 v2
Abstract
We develop the general non-equilibrium theory of transport through a quantum dot, including Coulomb Blockade effects via a 1/N expansion, where N is the number of scattering channels. At lowest order we recover the Landauer formula for the current plus a self-consistent equation for the dot potential. We obtain the leading corrections and compare with earlier approaches. Finally, we show that to leading and next leading order in 1/N there is no interaction correction to the weak localization, in contrast to previous theories, but consistent with experiments by Huibers et al. [Phys. Rev. Lett. 81, 1917 (1998)], where N=4.
Cite
@article{arxiv.cond-mat/0409244,
title = {Weak Coulomb blockade effect in quantum dots},
author = {Piet W. Brouwer and Austen Lamacraft and Karsten Flensberg},
journal= {arXiv preprint arXiv:cond-mat/0409244},
year = {2009}
}
Comments
4 pages, 2 figures. Published version