Coherent Transport through a Quantum Dot Embedded in an Aharonov-Bohm Ring
Mesoscale and Nanoscale Physics
2009-10-31 v1
Abstract
We study the coherent transport in multi-terminal mesoscopic Aharonov-Bohm ring with a quantum dot embedded in an arm. Employing the Friedel sum rule for the effective single-particle levels in the quantum dot, we explain some anomalous features which have been observed in the experiment. We attribute these anomalies to the result of nontrivial quantum interference of the quantum dot with the attached ring. Further, we propose a new feature of conductance oscillations which can be a test for the validity of our model.
Keywords
Cite
@article{arxiv.cond-mat/9811354,
title = {Coherent Transport through a Quantum Dot Embedded in an Aharonov-Bohm Ring},
author = {Kicheon Kang},
journal= {arXiv preprint arXiv:cond-mat/9811354},
year = {2009}
}
Comments
4 pages Revtex, 4 Postscript figures, accepted for publication in Phys. Rev. B