中国物理B ›› 2008, Vol. 17 ›› Issue (7): 2438-2445.doi: 10.1088/1674-1056/17/7/017

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Evolution of spiral wave and pattern formation in a vortical polarized electric field

易鸣1, 马军2, 李延龙2, 李炳伟3   

  1. (1)Department of Physics, Central China Normal University, Wuhan 430079, China; (2)Department of Physics, Lanzhou University of Technology, Lanzhou 730050, China; (3)Zhejiang Institute of the Modern Physics, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:2007-07-16 修回日期:2007-11-22 出版日期:2008-07-09 发布日期:2008-07-09
  • 基金资助:
    The project partially supported by the National Natural Science Foundation of China (Grant Nos 10747005, 10572056 and 30670529) and the Fund of Lanzhou University of Technology of China (Grant No Q200706)

Evolution of spiral wave and pattern formation in a vortical polarized electric field

Ma Jun(马军)a)†, Yi Ming(易鸣)b),Li Bing-Wei(李炳伟)c), and Li Yan-Long(李延龙)a)   

  1. a Department of Physics, Lanzhou University of Technology, Lanzhou 730050, China; b Department of Physics, Central China Normal University, Wuhan 430079, China; c Zhejiang Institute of the Modern Physics, Zhejiang University, Hangzhou 310027, China
  • Received:2007-07-16 Revised:2007-11-22 Online:2008-07-09 Published:2008-07-09
  • Supported by:
    The project partially supported by the National Natural Science Foundation of China (Grant Nos 10747005, 10572056 and 30670529) and the Fund of Lanzhou University of Technology of China (Grant No Q200706)

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摘要： In this paper, the evolution of the pattern transition induced by the vortical electric field (VEF) is investigated. Firstly, a scheme is suggested to generate the VEF by changing the spatial magnetic field. Secondly, the VEF is imposed on the whole medium, and the evolutions of the spiral wave and the spatiotemporal chaos are investigated by using the numerical simulation. The result confirms that the drift and the breakup of the spiral wave and the new net-like pattern are observed when different polarized fields are imposed on the whole medium respectively. Finally, the pattern transition induced by the polarized field is discussed theoretically.

关键词: spiral wave, pattern, vortical electric field (VEF)

Abstract: In this paper, the evolution of the pattern transition induced by the vortical electric field (VEF) is investigated. Firstly, a scheme is suggested to generate the VEF by changing the spatial magnetic field. Secondly, the VEF is imposed on the whole medium, and the evolutions of the spiral wave and the spatiotemporal chaos are investigated by using the numerical simulation. The result confirms that the drift and the breakup of the spiral wave and the new net-like pattern are observed when different polarized fields are imposed on the whole medium respectively. Finally, the pattern transition induced by the polarized field is discussed theoretically.

Key words: spiral wave, pattern, vortical electric field (VEF)

中图分类号:  (Numerical simulations of chaotic systems)

  • 05.45.Pq
05.65.+b (Self-organized systems)