Modified KdV equation for trapped ions in polarized dusty plasma

K. Singh, N. Kaur, P. Sethi, N. S. Saini

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

In this investigation, the effect of polarization force on dust acoustic solitary waves (DASWs) has been presented in a dusty plasma composed of Maxwellian electrons, vortex-like (trapped) ions, and negatively charged mobile dust grains. It has been found that from the Maxwellian ions distribution to a vortex-like one, the dynamics of small but finite amplitude DA solitary waves is governed by a nonlinear equation of modified Korteweg-de Vries (mKdV) type instead of KdV. The combined effect of trapped ions and polarization force strongly influence the characteristics of DASWs. Only rarefactive solitary structures are formed under the influence of ions trapping and polarization force. The implications of our results are useful in real astrophysical situations of space and laboratory dusty plasmas.

Original languageEnglish
Title of host publicationDiverse World of Dusty Plasmas
Subtitle of host publicationProceedings of the 8th International Conference on the Physics of Dusty Plasmas
EditorsJiri Pavlu, Jana Safrankova, Zdenek Nemecek
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416178
DOIs
StatePublished - Jan 5 2018
Externally publishedYes
Event8th International Conference on the Physics of Dusty Plasmas, ICPDP 2017 - Prague, Czech Republic
Duration: May 20 2017May 25 2017

Publication series

NameAIP Conference Proceedings
Volume1925
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference8th International Conference on the Physics of Dusty Plasmas, ICPDP 2017
Country/TerritoryCzech Republic
CityPrague
Period05/20/1705/25/17

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