Synchronization of chaos in RCL-shunted Josephson junction using a simple adaptive controller

被引：20
作者：
Guo, R. [1 ]
Vincent, U. E. [2 ,4 ]
Idowu, B. A. [3 ]
机构：
[1] Shandong Inst Light Ind, Sch Math & Phys, Jinan 250353, Peoples R China
[2] Tech Univ Clausthal, Dept Nonlinear Dynam & Stat Phys, Inst Theoret Phys, D-36876 Clausthal Zellerfeld, Germany
[3] Lagos State Univ, Dept Phys, Ojo, Nigeria
[4] Olabisi Onabanjo Univ, Dept Phys, Ago Iwoye, Nigeria
来源：
PHYSICA SCRIPTA | 2009年 / 79卷 / 03期
关键词：
DYNAMICS; SYSTEMS;
D O I：
10.1088/0031-8949/79/03/035801
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper, a simple adaptive control is proposed for the synchronization of chaotic dynamics of resistive-capacitive-inductive-shunted Josephson junctions (RCLSJ). The synchronization problem is investigated based on a drive-response system configuration consisting of two identical RCLSJ with and without identical system parameters. In addition, the synchronization when the system parameters are unknown is considered based on adaptive parameter control estimation. Sufficient conditions for global asymptotic synchronization are given and numerical simulations are employed to demonstrate the efficiency of the adaptive control scheme. In the presence of noise, we also show that the synchronization is robust and discuss the implication of our adaptive control technique in rapid single flux quantum (RSFQ) devices.
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页数：6
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