Time-dependent resonant tunneling for a parallel-coupled double quantum dots
Mesoscale and Nanoscale Physics
2009-11-10 v1
Abstract
We derive the quantum rate equations for an Aharonov-Bohm interferometer with two vertically coupled quantum dots embedded in each of two arms by means of the nonequilibrium Green's function in the sequential tunneling regime. Basing on these equations, we investigate time-dependent resonant tunneling under a small amplitude irradiation and find that the resonant photon-assisted tunneling peaks in photocurrent demonstrate a combination behavior of Fano and Lorentzian resonances due to the interference effect between the two pathways in this parallel configuration, which is controllable by threading the magnetic flux inside this device.
Keywords
Cite
@article{arxiv.cond-mat/0403741,
title = {Time-dependent resonant tunneling for a parallel-coupled double quantum dots},
author = {Bing Dong and Ivana Djuric and H. L. Cui and X. L. Lei},
journal= {arXiv preprint arXiv:cond-mat/0403741},
year = {2009}
}
Comments
8 pages, 5 figures