2020/09/26 by Jenab, S. M. Hosseini, Kourakis, I., Brodin, G. +1
#FOS: Physical sciences #Pattern Formation and Solitons (nlin.PS) #Plasma Physics (physics.plasm-ph)
paper · doi:10.48550/arxiv.2009.12708
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.