Non-adiabatic charge pump: an exact solution
Condensed Matter
2009-11-07 v1
Abstract
We derived a general and exact expression of current for quantum parametric charge pumps in the non-adiabatic regime at finite pumping frequency and finite driving amplitude. The non-perturbative theory predicts a remarkable plateau structure in the pumped current due to multi-photon assisted processes in a double-barrier quantum well pump involving only a {\it single} pumping potential. It also predicts a current reversal as the resonant level of the pump crosses the Fermi energy of the leads.
Keywords
Cite
@article{arxiv.cond-mat/0211536,
title = {Non-adiabatic charge pump: an exact solution},
author = {Baigeng Wang and Jian Wang and Hong Guo},
journal= {arXiv preprint arXiv:cond-mat/0211536},
year = {2009}
}