Transport theory of coupled quantum dots based on auxiliary operator method
Mesoscale and Nanoscale Physics
2015-05-20 v1 Computational Physics
Abstract
We formulate the theory of electron transport through coupled-quantum dots by extending the auxiliary operator representation. By using the generating functional technique, we derive the exact expressions for currents, dot-occupation numbers and spin correlations, and examine them based on the non-equilibrium Green's function method under the non-crossing approximation (NCA). Our formulation generalizes the previous NCA approaches by allowing full occupation numbers with a finite Coulomb repulsion.
Cite
@article{arxiv.1010.1576,
title = {Transport theory of coupled quantum dots based on auxiliary operator method},
author = {Jung Hyun Oh and D. Ahn and Vladimir Bubanja},
journal= {arXiv preprint arXiv:1010.1576},
year = {2015}
}
Comments
16pages, 5 figures