On the decay of a dipole pump wave to half-harmonics

Jukka Heikkinen, Timo Pättikangas, G. Devillers

    Research output: Contribution to journalArticleScientificpeer-review

    4 Citations (Scopus)


    Starting from a three-wave interaction coefficient for a homogeneous Vlasov plasma, we show that the parametric decay to half-harmonics has zero growth rate if the wavenumber of the pump wave vanishes. Earlier proofs of this fact for electrostatic decay modes are thus extended for a general case. As a specific example, we study the decay of a fast magnetosonic wave to two slow waves.

    Original languageEnglish
    Pages (from-to)231 - 236
    Number of pages6
    JournalJournal of Plasma Physics
    Issue number2
    Publication statusPublished - 1991
    MoE publication typeA1 Journal article-refereed


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