| Controlling chaos in RCL-shunted Josephson junction by delayed linear feedback |
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| 引用本文： | 冯玉玲,沈柯. Controlling chaos in RCL-shunted Josephson junction by delayed linear feedback[J]. 中国物理 B, 2008, 17(1): 111-116 |
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| 作者姓名： | 冯玉玲 沈柯 |
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| 作者单位： | Department of Physics, Changchun University of Science andTechnology, Changchun 130022, China;Department of Physics, Changchun University of Science andTechnology, Changchun 130022, China |
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| 摘 要： | The resistively-capacitively-inductively-shunted （RCL-shunted） Josephson junction （RCLSJJ） shows chaotic behaviour under some parameter conditions. Here a scheme for controlling chaos in the RCLSJJ is presented based on the linear feedback theory. Numerical simulations show that this scheme can be effectively used to control chaotic states in this junction into stable periodic states. Moreover, the different stable period states with different period numbers can be obtained by appropriately adjusting the feedback intensity and delay time without any pre-knowledge of this system required.
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| 关 键 词： | 约瑟夫森效应 混沌控制 分流器 延时线性反馈 |
| 收稿时间： | 2007-07-05 |
| 修稿时间： | 2007-08-26 |
Controlling chaos in RCL-shunted Josephson junction by delayed linear feedback |
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| Feng Yu-Ling and Shen Ke. Controlling chaos in RCL-shunted Josephson junction by delayed linear feedback[J]. Chinese Physics B, 2008, 17(1): 111-116 |
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| Authors: | Feng Yu-Ling and Shen Ke |
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| Affiliation: | Department of Physics, Changchun University of Science andTechnology, Changchun 130022, China |
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| Abstract: | The resistively--capacitively--inductively-shunted (RCL-shunted)Josephson junction (RCLSJJ) shows chaotic behaviour under someparameter conditions. Here a scheme for controlling chaos in theRCLSJJ is presented based on the linear feedback theory. Numericalsimulations show that this scheme can be effectively used to controlchaotic states in this junction into stable periodic states.Moreover, the different stable period states with different periodnumbers can be obtained by appropriately adjusting the feedbackintensity and delay time without any pre-knowledge of this systemrequired. |
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| Keywords: | chaos control RCL-shuntedJosephson junction maximum Lyapunov exponent delayed linearfeedback |
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