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Nonlinear dispersion relation for dust-acoustic waves in complex plasmas

Yaroshenko, Victoriya (2020) Nonlinear dispersion relation for dust-acoustic waves in complex plasmas. Physical Review E, 102 (2), 023201-1. American Physical Society. doi: 10.1103/PhysRevE.102.023201. ISSN 2470-0045.

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Official URL: https://journals.aps.org/pre/pdf/10.1103/PhysRevE.102.023201


Nonlinear dispersion relation for the finite-amplitude dust acoustic modes is obtained taking into account resonant particle trapping in the wave. The plasma species contributions to the nonlinear frequency shift have opposite sign: positive for trapped electrons and ions and negative for particles. It is shown that the relative importance of these contributions depends on the electron-to-ion or particle temperature ratio, particle charge, and Havnes parameter. In typical complex plasma experiments, the kinetic frequency shift is dominated by the positive ion contribution. As a result, the nonlinear modification of the dispersion relation affects the wave dispersion properties and may provide the acoustic-like behavior to the wide wave number domain.

Item URL in elib:https://elib.dlr.de/136625/
Document Type:Article
Title:Nonlinear dispersion relation for dust-acoustic waves in complex plasmas
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:August 2020
Journal or Publication Title:Physical Review E
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:023201-1
Publisher:American Physical Society
Series Name:American Physical Society
Keywords:Nonlinear plasma waves, plasma-wave interaction, dispersion relation, dust-acoustic waves, complex plasmas
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Komplexe Plasmen / Theory, Simulation (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space > Research Group Complex Plasma
Deposited By: Yaroshenko, Victoriya
Deposited On:14 Oct 2020 15:38
Last Modified:17 Mar 2021 13:40

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