Kinetic theory for distribution functions of wave-particle interactions in plasmas
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Kominis-2010-Kinetic theory for distribution functions of wave-particle interactions in plasmas.pdf
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Author(s)
Kominis, Yannis
Hizanidis, Kyriakos
Ram, Abhay K.
Date Issued
June 2010
Journal
Physical Review D
Publisher
American Physical Society
Citation
Kominis, Y., A. K. Ram, and K. Hizanidis. “Kinetic Theory for Distribution Functions of Wave-Particle Interactions in Plasmas.” Physical Review Letters 104.23 (2010): 235001. © 2010 The American Physical Society
Version
Final published version
Abstract
The evolution of a charged particle distribution function under the influence of coherent electromagnetic waves in a plasma is determined from kinetic theory. For coherent waves, the dynamical phase space of particles is an inhomogeneous mix of chaotic and regular orbits. The persistence of long time correlations between the particle motion and the phase of the waves invalidates any simplifying Markovian or statistical assumptions—the basis for usual quasilinear theories. The generalized formalism in this Letter leads to a hierarchy of evolution equations for the reduced distribution function. The evolution operators, in contrast to the quasilinear theories, are time dependent and nonsingular and include the rich phase space dynamics of particles interacting with coherent waves.
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.104.235001
