Floquet scattering in parametric electron pumps
介观与纳米尺度物理
2009-11-07 v1
摘要
A Floquet scattering approach to parametric electron pumps is presented and compared with Brouwer's adiabatic scattering approach [Phys. Rev. B 58, R10135 (1998)] for a simple scattering model with two harmonically oscillating delta-function barriers. For small strength of oscillating potentials these two approaches give exactly equivalent results while for large strength, these clearly deviate from each other. The validity of the adiabatic theory is also discussed by using the Wigner delay time obtained from the Floquet scattering matrix.
引用
@article{arxiv.cond-mat/0208099,
title = {Floquet scattering in parametric electron pumps},
author = {Sang Wook Kim},
journal= {arXiv preprint arXiv:cond-mat/0208099},
year = {2009}
}
备注
10 pages, 7 figures