Wave-particle Interactions and Radio Emission Processes in Solar Terrestrial Environments

研究人员将制定和数值求解一组完全自洽的粒子和波动力学方程，以及瞬时色散方程，以描述电子束和背景等离子体的相互作用。这个过程涉及朗缪尔波的激发，各种非线性过程，以及电磁辐射的最终发射。主要的努力是扩展一个新的，广义的，弱湍流理论-由首席研究员开发-适用于在太阳和行星际环境中的束-等离子体相互作用。新的方法也可能在等离子体物理研究的一般领域，特别是微观湍流等离子体过程的研究产生重大影响。在这一阶段的研究中，研究人员将集中在弱湍流等离子体的广义非线性色散方程的性质，以及对非线性本征模的理解。

The investigator will formulate and numerically solve a fully self-consistent set of particle and wave kinetic equations, together with an instantaneous dispersion equation, to describe the interactions of electron beams and background plasma. This process involves the excitation of Langmuir waves, various non-linear processes, and the eventual emission of electromagnetic radiation. The main effort is to extend a new, generalized, weak turbulence theory - developed by the principal investigator - applicable to beam-plasma interactions in the solar and interplanetary environment. The new approach may also have major consequences in the general field of plasma physics research and the study of microscopic turbulent plasma processes in particular. In this phase of the research, the investigator will concentrate on the nature of the generalized nonlinear dispersion equation for weakly turbulent plasmas, and understanding of the nonlinear eigenmode.