静电波驱动的空间扩散

当波的强度超过随机性阈值时,将出现动力学随机性。粒子不仅在速度空间中发生扩散,而且在位形空间中k×B₀的方向上出现随机扩散和定向流。它们可以远比经典过程强得多。在环等离子体中,波引起的速度扩散可驱动比新经典输运强得多的扩散流和靴带电流,后者提供了波驱动电流的一种可能的方案。关键词：

SPATIAL DIFFUSION DRIVEN BY ELECTROSTATIC WAVES

When the amplitude of waves exceeds a certain threshold, the stochasticity occurs both in the velocity space and configuration space. It is found that spatial diffusion and directional flow, which are much stronger than the classical processes, may be driven by waves in the k×B₀ direction. In toroidal plasma, the spatial diffusion and bootstrap current, which are much stronger than the neoclassical processes, may be produced by the wave-driven velocity diffusion effect. The wave-enhanced bootstrap current is available for current drive.