QUANTUM SHOT NOISE SPECTRUM OF A POINT CONTACT

被引：47

作者：

YANG, SRE

机构：

[1] Natl Research Council of Canada, Ottawa, Canada

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 81卷 / 05期

关键词：

D O I：

10.1016/0038-1098(92)90760-7

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have obtained a complete analytical expression for a fluctuation-dissipation relation which determines the current noise spectrum of a point contact where the transmission coefficient can be large. We infer from this result that the junction I(V) characteristic can be used to find the noise current spectrum. It is also shown explicitly that the suppression of the quantum shot noise for large transmission probability is a consequence of the fact that for fermions the fluctuations of the occupancy number of a level is small when the average occupancy is close to one.

引用

页码：375 / 378

页数：4

共 22 条

[1] TUNNELING INTO SUPERCONDUCTORS [J].