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Title: A mechanistic interpretation of the resonant wave-particle interaction

Abstract

This paper provides a simple mechanistic interpretation of the resonant wave-particle interaction of Landau. For the simple case of a Langmuir wave in a Vlasov plasma, the non-resonant electrons satisfy an oscillator equation that is driven resonantly by the bare electric field from the resonant electrons, and in the case of wave damping, this complex driver field is of a phase to reduce the oscillation amplitude. The wave-particle resonant interaction also occurs in waves governed by 2D E × B drift dynamics, such as a diocotron wave. In this case, the bare electric field from the resonant electrons causes E × B drift motion back in the core plasma, reducing the amplitude of the wave.

Authors:
;  [1]
  1. University of California at San Diego, La Jolla, California 92093 (United States)
Publication Date:
OSTI Identifier:
22600172
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 23; Journal Issue: 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; BOLTZMANN-VLASOV EQUATION; ELECTRIC FIELDS; ELECTRONS; EQUATIONS; LANDAU DAMPING; LANGMUIR FREQUENCY; OSCILLATIONS; OSCILLATORS; PARTICLE INTERACTIONS; PARTICLES; PLASMA

Citation Formats

Chim, Chi Yung, and O'Neil, Thomas M. A mechanistic interpretation of the resonant wave-particle interaction. United States: N. p., 2016. Web. doi:10.1063/1.4948480.
Chim, Chi Yung, & O'Neil, Thomas M. A mechanistic interpretation of the resonant wave-particle interaction. United States. doi:10.1063/1.4948480.
Chim, Chi Yung, and O'Neil, Thomas M. Sun . "A mechanistic interpretation of the resonant wave-particle interaction". United States. doi:10.1063/1.4948480.
@article{osti_22600172,
title = {A mechanistic interpretation of the resonant wave-particle interaction},
author = {Chim, Chi Yung and O'Neil, Thomas M.},
abstractNote = {This paper provides a simple mechanistic interpretation of the resonant wave-particle interaction of Landau. For the simple case of a Langmuir wave in a Vlasov plasma, the non-resonant electrons satisfy an oscillator equation that is driven resonantly by the bare electric field from the resonant electrons, and in the case of wave damping, this complex driver field is of a phase to reduce the oscillation amplitude. The wave-particle resonant interaction also occurs in waves governed by 2D E × B drift dynamics, such as a diocotron wave. In this case, the bare electric field from the resonant electrons causes E × B drift motion back in the core plasma, reducing the amplitude of the wave.},
doi = {10.1063/1.4948480},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 5,
volume = 23,
place = {United States},
year = {2016},
month = {5}
}