Decoherence and full counting statistics in a Mach-Zehnder interferometer -: art. no. 075301

被引：40

作者：

Förster, H ^{[1
]}

Pilgram, S

Büttiker, M

机构：

[1] Univ Geneva, Dept Phys Theor, CH-1211 Geneva, Switzerland

[2] ETH, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.72.075301

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the full counting statistics of an electrical Mach-Zehnder interferometer penetrated by an Aharonov-Bohm flux, and in the presence of a classical fluctuating potential. Of interest is the suppression of the Aharonov-Bohm oscillations in the distribution function of the transmitted charge. For a Gaussian fluctuating field we calculate the first three cumulants. The fluctuating potential causes a modulation of the conductance leading in the third cumulant to a term cubic in voltage and to a contribution correlating modulation of current and noise. In the high voltage regime we present an approximation of the generating function.

引用

页数：10

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