Effects of the noise on voltage-current characteristics of Josephson effect

被引：0
|
作者：
Chen, J [1 ]
Cao, L
Wu, DJ
机构：
[1] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China
[2] CCAST, World Lab, Beijing 100080, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 1999年 / 31卷 / 04期
关键词：
white noise; O-U noise; negative correlation between noises; Josephson junction;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In the case of T much greater than (h) over bar w/k, by expanding the quasiparticle current power spectrum up to the third order term of (h) over bar w/2kT, two noises are obtained: one is a white noise, the other is an O-U noise. We find that the two noises are the negative correlated noises, and correlation parameter lambda is equal to -root 6 /3. Effects of the correlated noises on voltage-current characteristics curve are studied. The numerical computations show that the correlation parameter lambda has very large effects on the voltage-current characteristics, but the correlation time tau of the O-U noise has a little effect.
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页码：567 / 572
页数：6
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