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Wake-mediated propulsion of an upstream particle in two-dimensional plasma crystals

Laut, Ingo and Räth, Christoph and Zhdanov, Sergey and Nosenko, Volodymyr and Morfill, Gregor E. and Thomas, Hubertus M. (2017) Wake-mediated propulsion of an upstream particle in two-dimensional plasma crystals. Physical Review Letters. American Physical Society. doi: 10.1103/PhysRevLett.118.075002. ISSN 0031-9007.

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Official URL: https://doi.org/10.1103/PhysRevLett.118.075002


The wake-mediated propulsion of an 'extra' particle in a channel of two neighboring rows of a two-dimensional plasma crystal, observed experimentally by Du et al. Phys. Rev. E 89, 021101(R) (2014), is explained in simulations and theory. We use the simple model of a pointlike ion wake charge to reproduce this intriguing effect in simulations, allowing for a detailed investigation and a deeper understanding of the underlying dynamics. We show that the nonreciprocity of the particle interaction, owing to the wake charges, is responsible for a broken symmetry of the channel that enables a persistent self-propelled motion of the extra particle. We find good agreement of the terminal extra-particle velocity with our theoretical considerations and with experiments.

Item URL in elib:https://elib.dlr.de/110412/
Document Type:Article
Title:Wake-mediated propulsion of an upstream particle in two-dimensional plasma crystals
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Laut, IngoIngo.Laut (at) dlr.deUNSPECIFIED
Räth, ChristophChristoph.Raeth (at) dlr.deUNSPECIFIED
Zhdanov, SergeySergey.Zhdanov (at) dlr.deUNSPECIFIED
Nosenko, VolodymyrV.Nosenko (at) dlr.deUNSPECIFIED
Morfill, Gregor E.max-planck-institut für extraterrestrische physik, giessenbachstrasse, 85748 garching, germanyUNSPECIFIED
Thomas, Hubertus M.Hubertus.Thomas (at) dlr.deUNSPECIFIED
Journal or Publication Title:Physical Review Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1103/PhysRevLett.118.075002
Publisher:American Physical Society
Keywords:complex Plasmas, channeling
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 / Data analysis (old), R - Komplexe Plasmen / Theory, Simulation (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Laut, Ingo
Deposited On:10 Jan 2017 14:51
Last Modified:30 May 2019 22:06

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