Unidirectional transport of ions and perturbation of plasma distribution functions by ion-acoustic solitons: Numerical simulation and analytical solution

New features of motion of background plasma ions in the presence of ion-acoustic solitons are analyzed by using a hydrodynamic model. Based on the ergodic hypothesis, ion velocity distribution functions are obtained analytically for the first time. It is shown that the initial Maxwellian distributio...

Full description

Saved in:
Bibliographic Details
Published in:Physics of plasmas 2023-02, Vol.30 (2)
Main Authors: Trukhachev, F. M., Gerasimenko, N. V., Vasiliev, M. M., Petrov, O. F.
Format: Article
Language:English
Subjects:
Distribution functions
Exact solutions
Ion velocity
Mathematical models
Maxwellian distribution
Perturbation
Plasma physics
Solitary waves
Velocity distribution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:New features of motion of background plasma ions in the presence of ion-acoustic solitons are analyzed by using a hydrodynamic model. Based on the ergodic hypothesis, ion velocity distribution functions are obtained analytically for the first time. It is shown that the initial Maxwellian distribution of ions takes a “beam-like” form in the region of plasmas occupied by solitons. Main parameters of the distribution functions of the background plasma corresponding to solitons of different amplitudes are determined. An important case of soliton trains motion, which often observed in experiments, as well as some other experimental aspects are also considered.
ISSN:1070-664X
1089-7674
DOI:10.1063/5.0133413