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Quintic Nonlinearity Induced Solitary Waves in Plasma Physics
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LIU Hong1,2,3;HE Xian-Tu2;LOU Sen-Yue1 |
1Department of Physics, Shanghai Jiao Tong University, Shanghai 200030
2Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088
3Graduate School, China Academy of Engineering Physics, P.O. Box 2101, Beijing 100088 |
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Cite this article: |
LIU Hong, HE Xian-Tu, LOU Sen-Yue 2002 Chin. Phys. Lett. 19 87-90 |
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Abstract The quintic nonlinearity is important in the study of the nonlinear interaction between Langmuir waves and electrons in plasma. Using the pseudoenergy approach, five types of solitary wave solutions are obtained explicitly. Only one of these is the modification of the soliton of the cubic nonlinear Schrödinger equation and can be treated perturbatively. However, other four types of solitary wave solutions are all induced by the quintic nonlinearity and cannot be treated perturbatively from the solutions of the cubic nonlinear Schrödinger equation.
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Keywords:
52.35.Sb
05.45.Jn
02.30.Ik
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Published: 01 January 2002
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