Wave-Particle-Interaction in Kinetic Plasmas
arXiv:1404.0499 · doi:10.1016/j.cpc.2014.03.028
Abstract
Resonant scattering of energetic protons off magnetic irregularities is the main process in cosmic ray diffusion. The typical theoretical description uses Alfven waves in the low frequency limit. We demonstrate that the usage of Particle-in-Cell (PiC) simulations for particle scattering is feasible. The simulation of plasma waves is performed with the relativistic electro-magnetic PiC code ACRONYM and the tracks of test particles are evaluated in order to study particle diffusion. Results for the low frequency limit are equivalent to those obtained with an MHD description, but only for high frequencies results can be obtained with reasonable effort. PiC codes have the potential to be a useful tool to study particle diffusion in kinetic turbulence.
7 pages, 2 figures, to be published in Computer Physics Communications
References in corpus (4)
- Kinetic Simulations of Magnetized Turbulence in Astrophysical Plasmas
- Bi-Directional Energy Cascades and the Origin of Kinetic Alfvénic and Whistler Turbulence in the Solar Wind
- Particle scattering in turbulent plasmas with amplified wave modes
- Evolution of plasma turbulence excited with particle beams
Cited by in corpus (4)
- Particle Scattering off of Right-Handed Dispersive Waves
- Recovering the damping rates of cyclotron damped plasma waves from simulation data
- Proton and Helium Heating by Cascading Turbulence in a Low-beta Plasma
- Large Scale Earth's Bow Shock with Northern IMF as simulated by PIC code in parallel with MHD model