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Phase Shifts during Interaction between Two Solitons in Two-Dimensional Dusty Plasma |
| LI Sheng-Chang;WU Li-Hua;LIN Mai-Mai;DUAN Wen-Shan |
| College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 |
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| Cite this article: |
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LI Sheng-Chang, WU Li-Hua, LIN Mai-Mai et al 2007 Chin. Phys. Lett. 24 2312-2315 |
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Abstract The dust acoustic solitary waves propagating in two different directions in two-dimensional dusty plasma are investigated. In order to study the
soliton interactions in multi-dimensional systems, we extend the reductive perturbation method and obtain two Korteweg--de Vries equations for nonlinear waves in both the ξ and η directions, respectively. The phase shifts after collision of two solitons with arbitrary angle are given. Finally, the solution of nd up to O(ε4) order is obtained.
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| Keywords:
52.35.Sb
52.25.Vy
05.45.Yv
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Received: 25 January 2007
Published: 25 July 2007
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