EFFECT OF ENVIRONMENTAL NOISE ON THE ACCURACY OF COULOMB-BLOCKADE DEVICES

被引：61

作者：

MARTINIS, JM

NAHUM, M

机构：

[1] National Institute of Standards and Technology, Boulder

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.48.18316

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate how noise generated by a finite environmental impedance limits the ultimate performance of Coulomb-blockade devices and possible current or charge standards. We have expressed the environmental theory of the Coulomb blockade in terms of the spectral density of the voltage noise arising from the environment, and have calculated the resulting single-junction tunneling and two-junction cotunneling rates. These rates are used to predict the tunneling rate of electrons through a five-junction pump and may explain the anomalously large rates that are observed experimentally.

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页码：18316 / 18319

页数：4

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