The ion acoustic solitary waves in the four component complex plasma with a Cairns-Tsallis distribution

Wang Hong; Du Jiulin

doi:10.1016/j.cjph.2022.03.030

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arXiv · 2107.03931

The ion acoustic solitary waves in the four component complex plasma with a Cairns-Tsallis distribution

Wang Hong·Du Jiulin

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Abstract

We study the ion acoustic solitary waves in the four-component complex plasma consisting of cold inertial ions, positrons, cold and hot (two-temperature) electrons, where the electrons and positrons are the Cairns-Tsallis distribution and have different nonthermal and nonextensive parameters. Base on the plasma hydrodynamic equations and Sagdeev pseudo-potential theory, we derive the conditions of the solitary waves to exist in the plasma, such as the Sagdeev pseudo-potential, the normalized electrostatic potential, the lower and upper limits of Mach number, and the compressive/rarefactive solitary wave. We show that, according to the present study, the solitary wave solutions exist only if the positrons are a Maxwellian distribution and the two-temperature electrons have the same nonextensive and nonthermal parameters. Numerical analyses are made for the conditions of solitary waves depending on the nonextensive and nonthermal parameters in the Cairns-Tsallis distribution.

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Wang Hong, Du Jiulin. 2021-07-06. The ion acoustic solitary waves in the four component complex plasma with a Cairns-Tsallis distribution. https://doi.org/10.1016/j.cjph.2022.03.030

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