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Nonlinear interaction between three kinetic Alfven waves
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
2006 (English)In: Physics Letters A, ISSN 0375-9601, Vol. 353, no 1, 73-75 p.Article in journal (Refereed) Published
Abstract [en]

Using Hall-MHD theory, we focus on the resonant interaction between three kinetic Alfvén waves. We thus derive three coupled equations which govern this process. It turns out that these equations contain the same coupling coefficient, directly showing that they satisfy the Manley–Rowe relations. The coupling coefficient can be written in a comparatively very simple form, that has not been deduced before. The decay rate, when a pump kinetic Alfvén wave decays into two similar Alfvén waves, is therefore easily estimated for plasmas of astrophysical interest.

Place, publisher, year, edition, pages
Amsterdam: North-Holland , 2006. Vol. 353, no 1, 73-75 p.
Identifiers
URN: urn:nbn:se:umu:diva-12392DOI: 10.1016/j.physleta.2005.11.079OAI: oai:DiVA.org:umu-12392DiVA: diva2:152063
Available from: 2007-04-03 Created: 2007-04-03 Last updated: 2011-04-26Bibliographically approved

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