Aharonov-Bohm oscillations and resonant tunneling in strongly correlated quantum dots
Condensed Matter
2009-10-28 v1
Abstract
We investigate Aharonov-Bohm oscillations of the current through a strongly correlated quantum dot embedded in an arbitrary scattering geometry. Resonant-tunneling processes lead to a flux-dependent renormalization of the dot level. As a consequence we obtain a fine structure of the current oscillations which is controlled by quantum fluctuations. Strong Coulomb repulsion leads to a continuous bias voltage dependent phase shift and, in the nonlinear response regime, destroys the symmetry of the differential conductance under a sign change of the external flux.
Keywords
Cite
@article{arxiv.cond-mat/9511119,
title = {Aharonov-Bohm oscillations and resonant tunneling in strongly correlated quantum dots},
author = {C. Bruder and Rosario Fazio and Herbert Schoeller},
journal= {arXiv preprint arXiv:cond-mat/9511119},
year = {2009}
}
Comments
RevTex, 5 pages, 3 PostScript figures. Accepted for publication in Phys. Rev. Lett