Chaotic Dynamics of a Josephson Junction with Nonlinear Damping

被引：3

作者：

Li Fei ^{[1
]}

Pan Chang-Ning ^{[2
]}

Zhang Dong-Xia ^{[1
]}

Tang Li-Qiang ^{[1
]}

机构：

[1] Hunan Univ Sci & Technol, Dept Phys, Xiangtan 411201, Peoples R China

[2] Hunan Univ Technol, Sch Sci, Zhuzhou 412008, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2010年 / 27卷 / 05期

关键词：

ONSET; MODEL;

D O I：

10.1088/0256-307X/27/5/050501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the chaotic dynamics of a Josephson junction with nonlinear damping. It is found that with the increasing dc bias the system undergoes a process from a biperiodical state to a chaotic one via a period-doubling route. Interestingly, when the value of the dc bias increases further, the number of the chaotic attractors also increases accordingly. These chaotic attractors appear one after another in different intervals and regions with time. Through a feedback controlling strategy the chaos can be effectively suppressed. We also find that the current between the two separated superconductors of the junction can increase or decrease monotonously with time in some parameter spaces.

引用

页数：3

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