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Applications of the wave kinetic approach: from laser wakefields to drift wave turbulence
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2009 (English)In: Physics of Plasmas, ISSN 1070-664X, Vol. 16, no 5, 055904- p.Article in journal (Refereed) Published
Abstract [en]

Nonlinear wave-driven processes in plasmas are normally described by either a monochromatic pump wave that couples to other monochromatic waves or as a random phase wave coupling to other random phase waves. An alternative approach involves a random or broadband pump coupling to monochromatic and/or coherent structures in the plasma. This approach can be implemented through the wave kinetic model. In this model, the incoming pump wave is described by either a bunch (for coherent waves) or a sea (for random phase waves) of quasiparticles. This approach has been applied to both photon acceleration in laser wakefields and drift wave turbulence in magnetized plasma edge configurations. Numerical simulations have been compared to experiments, varying from photon acceleration to drift mode-zonal flow turbulence, and good qualitative correspondences have been found in all cases.

Place, publisher, year, edition, pages
2009. Vol. 16, no 5, 055904- p.
Keyword [en]
plasma drift waves, plasma electromagnetic wave propagation, plasma flow, plasma kinetic theory, plasma nonlinear waves, plasma simulation, plasma turbulence
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:uu:diva-148512DOI: 10.1063/1.3125929ISI: 000266500600091OAI: oai:DiVA.org:uu-148512DiVA: diva2:402283
Available from: 2011-03-07 Created: 2011-03-07 Last updated: 2014-11-12Bibliographically approved

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Vaivads, Andris
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Swedish Institute of Space Physics, Uppsala Division
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