Finite amplitude envelope surface solitons

被引:5
|
作者
Moslem, W. M. [1 ,2 ]
Lazar, M. [1 ]
Shukla, P. K. [1 ,3 ,4 ,5 ,6 ,7 ,8 ,9 ,10 ,11 ]
机构
[1] Ruhr Univ Bochum, Inst Theoret Phys 4, Fak Phys & Astron, D-44780 Bochum, Germany
[2] Suez Canal Univ, Fac Educ Port Said, Dept Phys, Ismailia, Egypt
[3] Ruhr Univ Bochum, Nonlinear Phys Ctr, D-44780 Bochum, Germany
[4] Ruhr Univ Bochum, Ctr Plasma Sci & Astrophys, D-44780 Bochum, Germany
[5] Umea Univ, Dept Phys, SE-90187 Umea, Sweden
[6] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany
[7] Inst Super Tecn, GoLP, P-1049001 Lisbon, Portugal
[8] Ctr Fundamental Phys, Rutherford Appleton Lab, CCLRC, Didcot 0X11 0QX, Oxon, England
[9] Univ Strathclyde, SUPA Dept Phys, Glasgow G 40NG, Lanark, Scotland
[10] Univ Kwazulu Natal, Fac Sci & Agr, Sch Phys, ZA-4000 Durban, South Africa
[11] CITT, Dept Phys, Islamabad, Pakistan
关键词
D O I
10.1063/1.2899304
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Known results on the nonlinear coupling of surface plasma waves with quasistationary ion density perturbations are generalized to include finite amplitude density modulations. A more rigorous analytical criterion is provided for the existence of the surface soliton, by using the pseudopotential formalism. Finite amplitude solutions are obtained numerically and their characteristics are discussed. The present results are useful in understanding the nonlinear dynamics and the periodic oscillatory structures on plasma surfaces. (C) 2008 American Institute of Physics.
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页数:6
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