Nonlinear wave driven processes in plasmas

Robert Bingham, R.M.G.M. Trines, L.O. Silva, J. J. Santos, B Brandao, Jose Tito Mendonca, P.K. Shukla

Research output: Contribution to conferenceAbstract

Abstract

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 plasmas. This approach can be implemented through the wave kinetic model. In this model, the incoming pump wave is described by wither a bunch (for coherent waves) or a rea (for random phase waves) of quasi-particles. We will present a generalized statistical theory describing a range of phenomena that include generation of zonal flows from drift mode turbulence, photon acceleration of intense lasers and intense radio waves and photon shocks. Possible applications include a diagnostic of large amplitude plasma waves and studies of zonal flows in planetary atmospheres will also be discussed.
Original languageEnglish
Publication statusPublished - Nov 2009
EventAmerican Physical Society, 51st Annual Meeting of the APS Division of Plasma Physics - United States, United States
Duration: 2 Nov 20096 Nov 2009

Conference

ConferenceAmerican Physical Society, 51st Annual Meeting of the APS Division of Plasma Physics
CountryUnited States
Period2/11/096/11/09

Keywords

  • nonlinear
  • wave driven processes
  • plasmas

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    Bingham, R., Trines, R. M. G. M., Silva, L. O., Santos, J. J., Brandao, B., Mendonca, J. T., & Shukla, P. K. (2009). Nonlinear wave driven processes in plasmas. Abstract from American Physical Society, 51st Annual Meeting of the APS Division of Plasma Physics, United States.