Numerical challenges in kinetic simulations of three-wave interactions

TL;DR

This paper investigates the numerical challenges of simulating three-wave interactions in plasma kinetic simulations, focusing on radio burst generation and wave coupling in solar wind conditions using Particle in Cell methods.

Contribution

It highlights the difficulties in self-consistently modeling wave coupling processes in kinetic plasma simulations and presents preliminary results using a PiC code.

Findings

Identification of numerical challenges in wave coupling simulations

Preliminary insights into wave behaviour in beamed electron populations

Implications for modeling solar radio burst mechanisms

Abstract

Generation of radio bursts in CME foreshock regions and turbulent cascades in the solar wind are assumed to be results of three-wave interaction processes of dispersive plasma modes. Using our Particle in Cell code ACRONYM, we have studied the behaviour of kinetic wavemodes in the presence of beamed electron populations, with a focus on type II radio burst emission processes. We discuss the numerical challenges in generating and analyzing self-consistently evolving wave coupling processes with a PiC-Code and present preliminary results of said project.