Quantum fluctuations and electronic transport through strongly interacting quantum dots

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We study electronic transport through a strongly interacting quantum dot by using the finite temperature extension of Wilson's numerical renormalization group (NRG) method. This allows the linear conductance to be calculated at all temperatures and in particular at very low temperature where quantum fluctuations and the Kondo effect strongly modify the transport. The quantum dot investigated has one active level for transport and is modeled by an Anderson impurity model attached to left and right electron reservoirs. The predictions for the linear conductance are compared to available experimental data for quantum dots in heterostructures. The spin-resolved conductance is calculated as a function of gate voltage, temperature and magnetic field strength and the spin-filtering properties of quantum dots in a magnetic field are described.
9 pages, 8 eps figures, proceedings paper for 2nd Hvar workshop on Concepts in Correlated Electrons

Keywords

Strongly Correlated Electrons, Mesoscale and Nanoscale Physics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/20618

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0212651
 http://arxiv.org/abs/cond-mat/0212651
 Concepts in Electron Correlations, p.247, Kluwer,Dordrecht,2003 (Ed. A.C.Hewson and V.Zlatic)

Collections

arXiv