中国物理B ›› 2000, Vol. 9 ›› Issue (3): 175-179.doi: 10.1088/1009-1963/9/3/004

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CHAOTIC SOLITON IN COUPLED LONG JOSEPHSON JUNCTIONS

海文华1, 刘习春1, 黄卫立1, 张细利1, 方见树2   

  1. (1)Department of Physics, Hunan Normal University, Changsha 410081, China; (2)Department of Physics, Hunan Normal University, Changsha 410081, China; Department of Physics, Zhuzhou Teacher's College, Hunan 412001, China
  • 收稿日期:1999-07-11 出版日期:2000-03-15 发布日期:2000-03-20
  • 基金资助:
    Project supported by the Science Foundation of Educational Committee of Hunan Province of China, and the National Natural Science Foundation of China (Grant No. 19775013).

CHAOTIC SOLITON IN COUPLED LONG JOSEPHSON JUNCTIONS

Hai Wen-hua (海文华)a, Liu Xi-chun (刘习春)a, Fang Jian-shu (方见树)ab, Huang Wei-li (黄卫立)a, Zhang Xi-li (张细利)a   

  1. a Department of Physics, Hunan Normal University, Changsha 410081, China; b Department of Physics, Zhuzhou Teacher's College, Hunan 412001, China
  • Received:1999-07-11 Online:2000-03-15 Published:2000-03-20
  • Supported by:
    Project supported by the Science Foundation of Educational Committee of Hunan Province of China, and the National Natural Science Foundation of China (Grant No. 19775013).

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摘要： The interaction between soliton and sinusoidal wave in two weakly coupled long Josephson junctions is studied. Theoretical analysis reveals that the soliton may be embedded in Melnikov chaotic attractors and the Fiske-step-modes are implied in the boundedness condition of the system. Comparison between the chaotic soliton oscillators and synchronized soliton oscillators shows that the former possesses greater maximal velocity and energy.

Abstract: The interaction between soliton and sinusoidal wave in two weakly coupled long Josephson junctions is studied. Theoretical analysis reveals that the soliton may be embedded in Melnikov chaotic attractors and the Fiske-step-modes are implied in the boundedness condition of the system. Comparison between the chaotic soliton oscillators and synchronized soliton oscillators shows that the former possesses greater maximal velocity and energy.

中图分类号:  (Synchronization; coupled oscillators)

  • 05.45.Xt
05.45.Yv (Solitons) 85.25.Cp (Josephson devices)