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Chin. Phys. B, 2008, Vol. 17(1): 111-116    DOI: 10.1088/1674-1056/17/1/020
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Controlling chaos in RCL-shunted Josephson junction by delayed linear feedback

Feng Yu-Ling(冯玉玲) and Shen Ke(沈柯)
Department of Physics, Changchun University of Science and Technology, Changchun 130022, China
Abstract  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.
Keywords:  chaos control      RCL-shunted Josephson junction      maximum Lyapunov exponent      delayed linear feedback  
Accepted manuscript online: 
PACS:  74.40.+k  
  05.45.Gg (Control of chaos, applications of chaos)  
  05.45.Pq (Numerical simulations of chaotic systems)  
  85.25.Cp (Josephson devices)  

Cite this article: 

Feng Yu-Ling(冯玉玲) and Shen Ke(沈柯) Controlling chaos in RCL-shunted Josephson junction by delayed linear feedback 2008 Chin. Phys. B 17 111

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