Stable Langmuir solitons in plasma with diatomic ions

被引：6

作者：

Dvornikov, M. ^{[1
,2
]}

机构：

[1] Univ Sao Paulo, Inst Phys, BR-05315970 Sao Paulo, Brazil

[2] Pushkov Inst Terr Magnetism Ionosphere & Radiowav, Moscow 142190, Russia

来源：

NONLINEAR PROCESSES IN GEOPHYSICS | 2013年 / 20卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

BALL; EXCHANGE;

D O I：

10.5194/npg-20-581-2013

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We study stable axially and spherically symmetric spatial solitons in plasma with diatomic ions. The stability of a soliton against collapse is provided by the interaction of induced electric dipole moments of ions with the 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.

引用

页码：581 / 588

页数：8

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