Vlasov-Maxwell numerical simulations of large amplitude langmuir wave dynamics

Francesco Califano, Maurizio Lontano

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Abstract

The classical problem of the nonlin ear dynamics of one dimensional large Langmuir waves is in vestigated numerically in the framework of a kin etic model based on the Vlasov equations for plasma electrons and ions, coupled with the Maxwell equations. The field and plasma quantities are followed in time startin g from a given spatial electric field distribution with typical scalelength much larger than the Debye length. The temporal evolution of the particle distribution functions and of its moments are in vestigated durin g the relaxation of the in itial perturbation or under the action of an externally applied oscillatin g field. The transformation of ordered energy in to electron temperature is observed. The frequency spectra of the electron and ion fluctuations are calculated and harmonic generation is studied.
Original languageEnglish
Pages (from-to)208 - 212
Number of pages5
JournalPhysica Scripta
Volume75
Publication statusPublished - 1998
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics
  • Physics and Astronomy(all)

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