Non-adiabatic two-parameter charge and spin pumping in a quantum dot
Mesoscale and Nanoscale Physics
2016-01-20 v1
Abstract
We study DC charge and spin transport through a weakly coupled quantum dot, driven by a non-adiabatic periodic change of system parameters. We generalize the model of Tien and Gordon to simultaneously oscillating voltages and tunnel couplings. When applying our general result to the two-parameter charge pumping in quantum dots, we find interference effects between the oscillations of the voltage and tunnel couplings. Furthermore, we discuss the possibility to electrically pump a spin current in presence of a static magnetic field.
Keywords
Cite
@article{arxiv.0801.4925,
title = {Non-adiabatic two-parameter charge and spin pumping in a quantum dot},
author = {Matthias Braun and Guido Burkard},
journal= {arXiv preprint arXiv:0801.4925},
year = {2016}
}
Comments
4.1 pages, 4 figures