Relativistic Magnetosonic Solitary Wave in Magnetized Multi-Ion Plasma

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Communications in Theoretical Physics ›› 2009, Vol. 51 ›› Issue (06) : 1121-1124.

WANG Yun-Liang,¹ ZHOU Zhong-Xiang,² LU Yan-Zhen,¹ NI Xiao-Dong,¹ SHEN Jiang,¹and ZHANG Yu¹

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Abstract

In the presence of an applied uniform magnetic field B₀, the properties of 2-dimensional (2D) magnetosonic solitary waves of relativistic amplitude in the plasma containing electron, light ions He⁺, and heavy ions O⁺ are presented. In the weakly relativistic limit, a Kadomtsev-Petviashvili (KP) equation is derived by reductive perturbation method. We give the N-soliton solution of the KP equation and find dromion solutions of a potential of the physical field. The interaction law of the
dromions is obtained, which shows there is no exchange of energy, momentum, and angular momentum before and after interaction of the dromions except for phase shifts.

Key words

magnetosonic solitary wave / magnetized plasma / weakly relativistic

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WANG Yun-Liang, ZHOU Zhong-Xiang, LU Yan-Zhen, NI Xiao-Dong, SHEN Jiang, and ZHANG Yu. Relativistic Magnetosonic Solitary Wave in Magnetized Multi-Ion Plasma[J]. Communications in Theoretical Physics, 2009, 51(06): 1121-1124