Transport through correlated quantum dots: An investigation using the functional renormalization group
Materials Science
2009-11-13 v1 Strongly Correlated Electrons
Abstract
Calculations using the (exact) fermionic functional renormalization group are usually truncated at the second order of the corresponding hierarchy of coupled ordinary differential equations. We present a method for the systematic determination of higher order vertex functions. This method is applied to a study of transport properties of various correlated quantum dot systems. It is shown that for large Coulomb correlations higher order vertex functions cannot be neglected, and a static approximation is insufficient.
Cite
@article{arxiv.0801.2893,
title = {Transport through correlated quantum dots: An investigation using the functional renormalization group},
author = {Michael Weyrauch and Dieter Sibold},
journal= {arXiv preprint arXiv:0801.2893},
year = {2009}
}
Comments
10 figures, accepted by Phys. Rev. B