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Applications of the wave kinetic approach: from laser wakefields to drift wave turbulence
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2010 (English)In: Journal of Plasma Physics, ISSN 0022-3778, E-ISSN 1469-7807, Vol. 76, no 6, 903-914 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 quasi-particles. 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
2010. Vol. 76, no 6, 903-914 p.
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Physical Sciences
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URN: urn:nbn:se:uu:diva-147117DOI: 10.1017/S0022377810000449ISI: 000284043700012OAI: oai:DiVA.org:uu-147117DiVA: diva2:399917
Available from: 2011-02-24 Created: 2011-02-24 Last updated: 2017-12-11Bibliographically approved

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Vaivads, Andris

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Swedish Institute of Space Physics, Uppsala Division
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