SUPERSYMMETRIC PATH-INTEGRALS APPLIED TO THE TRANSMISSION OF A MESOSCOPIC RING

被引：3

作者：

FRAHM, K

MUHLSCHLEGEL, B

机构：

[1] Institut für Theoretische Physik, Universität zu Köln, Köln

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1994年 / 94卷 / 1-2期

关键词：

D O I：

10.1007/BF01307672

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The average transmission probability of a one-dimensional mesoscopic ring is calculated for arbitrary disorder strength. With increasing disorder the dependence on the magnetic flux PHI changes from PHI0 to PHI0/2 periodicity. A supersymmetric method is used for the calculation which leads to the quantum mechanics in superspaoe of an anharmonic oscillator with hyperbolic symmetry. As a byproduct the transmission of a mesoscopic wire is obtained. The inverse of the localization length is given by the lowest eigenvalue of the oscillator.

引用

页码：201 / 212

页数：12