Hybrid PIC-fluid model for numerical simulation of laser-plasma interaction

Andrey Sladkov

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arXiv · 2601.01633

Hybrid PIC-fluid model for numerical simulation of laser-plasma interaction

Andrey Sladkov

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Abstract

A hybrid PIC-fluid model is proposed for three dimensional numerical simulation of laser-plasma interaction. Ions are treated kinetically, electrons as a ten-moment fluid, capturing ion-scale dynamics, pressure anisotropy, and non-Maxwellian distributions efficiently. A laser-envelope model handles energy deposition and ponderomotive heating without resolving optical oscillations. Collisional and ionisation processes ensure self-consistent evolution of energy and charge states. The model is implemented in the AKAM code, providing a scalable framework that bridges fully kinetic and fluid approaches for high-energy-density and laboratory plasma applications.

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Andrey Sladkov. 2026-01-04. Hybrid PIC-fluid model for numerical simulation of laser-plasma interaction. https://arxiv.org/abs/2601.01633

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