Stable Langmuir solitons in plasma with diatomic ions
Abstract
We study stable axially and spherically symmetric spatial solitons in plasma with diatomic ions. The stability of a soliton against the collapse is provided by the interaction of induced electric dipole moments of ions with rapidly oscillating electric field of a plasmoid. We derive the new cubic-quintic nonlinear Schrodinger equation which governs the soliton dynamics and numerically solve it. Then we discuss the possibility of implementation of such plasmoids in realistic atmospheric plasma. In particular, we suggest that spherically symmetric Langmuir solitons, described in the present work, can be excited at the formation stage of long-lived atmospheric plasma structures. The implication of our model for the interpretation of the results of experiments for the plasmoids generation is discussed.
Keywords
Cite
@article{arxiv.1203.0258,
title = {Stable Langmuir solitons in plasma with diatomic ions},
author = {Maxim Dvornikov},
journal= {arXiv preprint arXiv:1203.0258},
year = {2013}
}
Comments
13 pages, two columns, LaTeX2e, 2 eps figures; paper was significantly revised, secs. 2-4 were modified, figures were replotted, several new references were included; version accepted for publication in Nonlinear Processes in Geophysics (European Geosciences Union, Copernicus Publications)