Low Frequency Solitary Waves in Magnetized Electron--Positron--Ion Plasmas
M. Ansar Mahmood1, S. Mahmood2,3, Arshad M. Mirza1, H. Saleem2,3
1Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan
2Department of Physics, COMSATS Institute of Information Technology, H-8, Islamabad 45320, Pakistan
3PINSTECH (Physics Research Division), P.O. Nilore Islamabad 45320, Pakistan
Low Frequency Solitary Waves in Magnetized Electron--Positron--Ion Plasmas
M. Ansar Mahmood1;S. Mahmood2,3;Arshad M. Mirza1;H. Saleem2,3
1Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan
2Department of Physics, COMSATS Institute of Information Technology, H-8, Islamabad 45320, Pakistan
3PINSTECH (Physics Research Division), P.O. Nilore Islamabad 45320, Pakistan
Abstract： Nonlinear electrostatic and electromagnetic low frequency waves are studied in magnetized electron--positron--ion (EPI) plasmas. The effects of full nonlinearity and three dimensional ion motion have been taken into account. It is shown that both density dips and humps can coexist in EPI plasmas along with bell-shaped and kink-type solitons. The new results as well as several limiting cases for comparison with earlier work have been discussed, for the sake of completeness. Relevance of this work to space, astrophysical and laboratory plasmas is pointed out.
M. Ansar Mahmood;S. Mahmood;Arshad M. Mirza;H. Saleem;. Low Frequency Solitary Waves in Magnetized Electron--Positron--Ion Plasmas[J]. 中国物理快报, 2005, 22(3): 632-635.
M. Ansar Mahmood, S. Mahmood, Arshad M. Mirza, H. Saleem,. Low Frequency Solitary Waves in Magnetized Electron--Positron--Ion Plasmas. Chin. Phys. Lett., 2005, 22(3): 632-635.
2005, Vol. 22 
