ORDER AND TURBULENCE IN RF-DRIVEN JOSEPHSON-JUNCTION SERIES ARRAYS

被引:51
作者
DOMINGUEZ, D [1 ]
CERDEIRA, HA [1 ]
机构
[1] UNIV ESTADUAL CAMPINAS,INST FIS,BR-13100 CAMPINAS,SP,BRAZIL
关键词
D O I
10.1103/PhysRevLett.71.3359
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study underdamped Josephson junction series arrays that are globally coupled through a resistive shunting load and driven by an rf bias current. We find coherent, ordered, partially ordered, and turbulent regimes in the I-V characteristics. The ordered regime corresponds to giant Shapiro steps. In the turbulent regime there is a saturation of the broadband noise for a large number of junctions. This corresponds to a breaking of the law of large numbers already seen in globally coupled maps. Coexisting with this, we find an emergence of novel pseudosteps in the I-V characteristics.
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页码:3359 / 3362
页数:4
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