Scaling behavior in a quantum wire with scatterers
介观与纳米尺度物理
2009-10-31 v1
摘要
We study the conductance properties of a straight two-dimensional quantum wire with impurities modeled by -like scatterers. Their presence can lead to strong inter-channel coupling. It was shown that such systems depend sensitively on the number of transverse modes included. Based on a poor man's scaling technique we include the effect of higher modes in a renormalized coupling constant. We therefore show that the low-energy behavior of the wire is dominated by only a few modes, which hence is a way to reduce the necessary computing power. The technique is successfully applied to the case of one and two -like scatterers.
引用
@article{arxiv.cond-mat/0009381,
title = {Scaling behavior in a quantum wire with scatterers},
author = {D. Boese and M. Lischka and L. E. Reichl},
journal= {arXiv preprint arXiv:cond-mat/0009381},
year = {2009}
}
备注
7 pages, 7 figures included; to be published in Phys. Rev. B