Josephson junction with noise

被引：39

作者：

Berdichevsky, V ^{[1
]}

Gitterman, M ^{[1
]}

机构：

[1] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel

来源：

PHYSICAL REVIEW E | 1997年 / 56卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.56.6340

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We analyze the voltage-current characteristics of a Josephson junction subject to multiplicative noise with and without additive noise. An analytical solution was obtained for the dichotomous multiplicative noise as well as for the forms of the voltage-current characteristics for different noise amplitudes and rates. Nonmonotonic behavior was found for the voltage as a function of noise rate (stochastic resonance). The cooperative action of additive and multiplicative noises results in a voltage larger than that predicted from Ohm's law. The ratchet effect and limit cases of weak and strong noises are analyzed in detail.

引用

页码：6340 / 6354

页数：15

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