论文标题
血浆相空间动力学中的超快电子孔
Ultrafast Electron Holes in Plasma Phase Space Dynamics
论文作者
论文摘要
电子孔(EH)是血浆动力学理论中的局部模式,在相空间中似乎是涡旋。对EH的较早研究基于Schamel分布函数(DF)。这里提出了一种新颖的分布函数,以递归方式概括了原始的沙梅尔DF。提出了通过动力学模拟获得的非线性溶液,速度是电子热速度的两倍。使用1D-1V动力学模拟,它们的传播特性是追溯的,并且通过研究它们的长期演变和通过相互碰撞来确定其稳定性。
Electron holes (EH) are localized modes in plasma kinetic theory which appear as vortices in phase space. Earlier research on EH is based on the Schamel distribution function (df). A novel distribution function is proposed here, generalizing the original Schamel df in a recursive manner. Nonlinear solutions obtained by kinetic simulations are presented, with velocities twice the electron thermal speed. Using 1D-1V kinetic simulations, their propagation characteristics are traced and their stability is established by studying their long-time evolution and their behavior through mutual collisions.