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Theoretical investigation of properties of soliton in hot dusty plasma with non-thermal ions

Wang Hong-Yan Duan Wen-Shan

Theoretical investigation of properties of soliton in hot dusty plasma with non-thermal ions

Wang Hong-Yan, Duan Wen-Shan
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Publishing process
  • Received Date:  18 September 2006
  • Accepted Date:  17 October 2006
  • Published Online:  20 July 2007

Theoretical investigation of properties of soliton in hot dusty plasma with non-thermal ions

  • 1. (1)西北师范大学 物理与电子工程学院, 兰州 730070; (2)西北师范大学 物理与电子工程学院, 兰州 730070;四川理工学院物理系,自贡 643000

Abstract: In this paper, the properties of soliton structures in a hot, unmagnetized dusty plasma which consists of a negatively charged hot dust fluid with variable dust charge, non-thermal distribution of ions and Boltzmann distribution of electrons have been studied. A modified KdV (mKdV) equation which describes the dust acoustic waves in this system is derived by the reductive perturbation method. The effects of dusty plasma parameters on the dust-acoustic solitary waves is studied theoretically. It is found that the soliton structures is determined by the dusty plasma parameters. Furthermore, the soliton only exists in certain regions where these parameters are specially chosen.

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