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research article

Longitudinal and Transverse Instability of Ion Acoustic Waves

Chapman, T.
•
Berger, R. L.
•
Cohen, B. I.
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2017
Physical Review Letters

Ion acoustic waves are found to be susceptible to at least two distinct decay processes. Which process dominates depends on the parameters. In the cases examined, the decay channel where daughter modes propagate parallel to the mother mode is found to dominate at larger amplitudes, while the decay channel where the daughter modes propagate at angles to the mother mode dominates at smaller amplitudes. Both decay processes may occur simultaneously and with onset thresholds below those suggested by fluid theory, resulting in the eventual multidimensional collapse of the mother mode to a turbulent state.

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Type
research article
DOI
10.1103/PhysRevLett.119.055002
Web of Science ID

WOS:000406912900008

Author(s)
Chapman, T.
Berger, R. L.
Cohen, B. I.
Banks, J. W.
Brunner, S.
Date Issued

2017

Publisher

Amer Physical Soc

Published in
Physical Review Letters
Volume

119

Issue

5

Article Number

055002

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SPC  
Available on Infoscience
October 9, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/141279
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