Nonlinear ion-acoustic waves in a non-ideal electron-positron-ion plasma in which ions obey the Van der Waals equation of state

Alexander E. Dubinov and Ilya N. Kitayev

Chaos, Solitons & Fractals, 2025, vol. 201, issue P1

Abstract: A non-ideal e−e+i+ plasma was studied. It consisted of a mixture of three gases – gases of inertialess electrons and inertialess positrons, and a gas of positive single-charge ions. The electrons and positrons in plasma were considered to be Boltzmann-distributed, and the ion gas obeyed the Van der Waals equation of state. Ion-acoustic waves in such a plasma were studied. The process of studying was carried out in framework of the gas-dynamic approach.

Keywords: e−e+i+ plasma; Ion-acoustic waves; Gas-dynamic approach; Bernoulli pseudopotential method; Periodic wave; Soliton (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:201:y:2025:i:p1:s0960077925012226

DOI: 10.1016/j.chaos.2025.117209

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