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

Oliver Mathiak; Lars Reichwein; Alexander Pukhov

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arXiv · 2512.07605

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

Oliver Mathiak·Lars Reichwein·Alexander Pukhov

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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.

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Oliver Mathiak, Lars Reichwein, Alexander Pukhov. 2025-12-08. Efficient Simulation of Electron-Positron Pair Production in Foam Targets in the low \chi-Regime. https://arxiv.org/abs/2512.07605

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