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Physics > Plasma Physics

arXiv:physics/0510131 (physics)
[Submitted on 14 Oct 2005 (v1), last revised 26 Apr 2006 (this version, v3)]

Title:Nontrapping arrest of Langmuir wave damping near the threshold amplitude

Authors:A. V. Ivanov, Iver H. Cairns
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Abstract: Evolution of a Langmuir wave is studied numerically for finite amplitudes slightly above the threshold which separates damping from nondamping cases. Arrest of linear damping is found to be a second-order effect due to ballistic evolution of perturbations, resonant power transfer between field and particles, and organization of phase space into a positive slope for the average distribution function $f_{av}$ around the resonant wave phase speed $v_\phi$. Near the threshold trapping in the wave potential does not arrest damping or saturate the subsequent growth phase.
Comments: 5 pages, 7 figures, accepted by Phys. Rev. Lett
Subjects: Plasma Physics (physics.plasm-ph)
Cite as: arXiv:physics/0510131 [physics.plasm-ph]
  (or arXiv:physics/0510131v3 [physics.plasm-ph] for this version)
  https://doi.org/10.48550/arXiv.physics/0510131
Related DOI: https://doi.org/10.1103/PhysRevLett.96.175001

Submission history

From: Alexei Ivanov [view email]
[v1] Fri, 14 Oct 2005 11:15:00 UTC (480 KB)
[v2] Wed, 12 Apr 2006 11:31:30 UTC (645 KB)
[v3] Wed, 26 Apr 2006 09:40:08 UTC (644 KB)
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