Insensitivity to time-reversal symmetry breaking of universal conductance fluctuations with Andreev reflection

被引：22

作者：

Brouwer, PW

Beenakker, CWJ

机构：

[1] Instituut-Lorentz, University of Leiden, 2300 RA Leiden

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.52.16772

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Numerical simulations of conduction through a disordered microbridge between a normal metal and a superconductor have revealed an anomalous insensitivity of the conductance fluctuations to a magnetic field. A theory for the anomaly is presented: both an exact analytical calculation (using random-matrix theory) and a qualitative symmetry argument (involving the exchange of time-reversal for reflection symmetry).

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收藏

页码：16772 / 16775

页数：4

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