论文标题
EXB电子漂移不稳定
Sticky islands in stochastic webs and anomalous chaotic cross-field particle transport by ExB electron drift instability
论文作者
论文摘要
EXB电子漂移不稳定性存在于许多等离子体设备中,是跨场颗粒传输中的重要药物。在产生的低频静电波的情况下,带电粒子的运动变得混乱,并在相空间中产生随机网。我们将缩放指数定义为表征相空间中的传输,并表明传输是异常的,超扩散类型。鉴于模型参数的值,轨迹粘贴在相空间中的不同种类的岛屿上,并且它们不同的粘性时间幂律统计产生了超排除运输的连续制度。
The ExB electron drift instability, present in many plasma devices, is an important agent in cross-field particle transport. In presence of a resulting low frequency electrostatic wave, the motion of a charged particle becomes chaotic and generates a stochastic web in phase space. We define a scaling exponent to characterise transport in phase space and we show that the transport is anomalous, of super-diffusive type. Given the values of the model parameters, the trajectories stick to different kinds of islands in phase space, and their different sticking time power-law statistics generate successive regimes of the super-diffusive transport.