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Author Escande, Dominique F. ♦ Elskens, Yves
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2008-07-11
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword Physics - Plasma Physics ♦ Nonlinear Sciences - Chaotic Dynamics ♦ nlin ♦ physics:physics
Abstract Using the Vlasov-wave formalism, it is shown that self-consistency vanishes in the plateau regime of the bump-on-tail instability if the plateau is broad enough. This shows that, in contrast with the "turbulent trapping" Ansatz, a renormalization of the Landau growth rate or of the quasilinear diffusion coefficient is not necessarily related to the limit where the Landau growth time becomes large with respect to the time of spreading of the particle positions due to velocity diffusion.
Educational Use Research
Learning Resource Type Article


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