二维相对论运动等离子体的介电率张量

Dielectric tensor of 2D relativistic motional plasma

定义了相对论性运动等离子体的物理模型 .利用荷流体的微扰理论 ,研究了该系统二维扰动现象及背景离子下的束 波互作用问题 ,导出了该系统的介电率张量 .研究表明 ,相对论运动等离子体系统属复杂的色散荷流体介质并呈复杂的空间电磁不均匀性 .数值模拟计算给出了相对论运动等离子体系统的介电率对波频率。

The relativistic motional plasma model is proposed ane defined. Using the charge fluid perturbation theory, the two_dimensional (2D) self_disturbance of the sys tem and the phenomenon of beam_wave interaction are suudied. From this, the diel ectric tensor of 2D relativistic motional plasma is given. We found that the rel ativistic motional plasma is an electromagnetic dielectric with a c omplex dispersion relat ion, and it displays a non_uniform complex electromagnetic space. In this paper , th e response of relativistic motional plasma to the wave frequency is obtained by the numerical computation.