How to detect the fourth-order cumulant of electrical noise

被引：32

作者：

Ankerhold, J ^{[1
]}

Grabert, H

机构：

[1] Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany

[2] CEA Saclay, DSM, DRECAM, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.95.186601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is proposed to measure the current noise generated in a mesoscopic conductor by macroscopic quantum tunneling (MQT) in a current biased Josephson junction placed in parallel to the conductor. The theoretical description of this setup takes into account the complete dynamics of detector and noise source. Explicit results are given for the specific case of current fluctuations in an oxide layer tunnel junction, and it is shown how the device allows to extract the fourth-order cumulant of the noise from the MQT data for realistic experimental parameters.

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页数：4

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