Collisions of ion-acoustic solitary waves in a plasma with negative ions

Yu.V. Medvedev

Chaos, Solitons & Fractals, 2023, vol. 176, issue C

Abstract: Head-on collisions of rarefactive ion-acoustic solitary waves and head-on collisions of compressive ion-acoustic solitary waves in a plasma with negative ions are considered. It is shown that such collisions at large amplitudes of the colliding waves lead to a decrease in their amplitudes after the collision. Physical phenomena leading to a loss of energy and a corresponding decrease in the amplitude of the wave after a collision are considered. The phenomenon of wave breaking is studied and the breaking amplitude is determined. The formation of ion-acoustic solitary waves with trapped ions is described. Such a wave, unlike ordinary ion-acoustic solitary waves, transfers not only momentum and energy, but also matter. It is shown that ion-acoustic solitary waves of large amplitudes in a plasma with negative ions cannot be classified as ion-acoustic solitons.

Keywords: Ion-acoustic solitary wave; Plasma with negative ions; Multi-flow motion; Caustic (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:176:y:2023:i:c:s0960077923010330

DOI: 10.1016/j.chaos.2023.114132

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