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.
|Published - Nov 2009
|American Physical Society, 51st Annual Meeting of the APS Division of Plasma Physics - United States, United States
Duration: 2 Nov 2009 → 6 Nov 2009
|American Physical Society, 51st Annual Meeting of the APS Division of Plasma Physics
|2/11/09 → 6/11/09
- wave driven processes