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物理学报. 2007, 56(7): 3977-3983.
doi: 10.7498/aps.56.3977.
对含有非热力学平衡离子的尘埃等离子体中孤波特性的理论研究
- 收稿日期: 2006-09-18
- 修回日期: 2006-10-17
- 刊出日期: 2007-07-20
English Abstract
Theoretical investigation of properties of soliton in hot dusty plasma with non-thermal ions
- Received Date:
18 September 2006
- Accepted Date:
17 October 2006
- Published Online:
20 July 2007
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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