Efficient Simulation of Electron-Positron Pair Production in Foam Targets in the low \chi-Regime

TL;DR

This paper introduces an efficient simulation method for electron-positron pair production in foam targets under low  conditions, utilizing a new sub-sampling routine in particle-in-cell simulations to improve quantum electrodynamical process modeling.

Contribution

The paper presents a novel sub-sampling routine in the vlpl code that enhances the simulation of quantum electrodynamical processes in pair production scenarios.

Findings

Improved simulation accuracy for pair production in foam targets.

Efficient modeling of quantum electrodynamical processes at low .

Potential for more realistic predictions in laser-driven pair production experiments.

Abstract

The generation of electron-positron pairs using direct laser-accelerated electrons and a cone-shaped reflector target for the generation of strong electromagnetic fields is investigated using particle-in-cell simulations. A newly implemented sub-sampling routine for the code vlpl is presented which allows for a better description of quantum electrodynamical processes which would otherwise come at a high computational cost.