PICSAR-QED: a Monte Carlo module to simulate strong-field quantum electrodynamics in particle-in-cell codes for exascale architectures - Archive ouverte HAL Access content directly
Journal Articles New Journal of Physics Year : 2022

PICSAR-QED: a Monte Carlo module to simulate strong-field quantum electrodynamics in particle-in-cell codes for exascale architectures

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Luca Fedeli
Neïl Zaïm
Antonin Sainte-Marie
Henri Vincenti

Abstract

Abstract Physical scenarios where the electromagnetic fields are so strong that quantum electrodynamics (QED) plays a substantial role are one of the frontiers of contemporary plasma physics research. Investigating those scenarios requires state-of-the-art particle-in-cell (PIC) codes able to run on top high-performance computing (HPC) machines and, at the same time, able to simulate strong-field QED processes. This work presents the PICSAR-QED library, an open-source, portable implementation of a Monte Carlo module designed to provide modern PIC codes with the capability to simulate such processes, and optimized for HPC. Detailed tests and benchmarks are carried out to validate the physical models in PICSAR-QED, to study how numerical parameters affect such models, and to demonstrate its capability to run on different architectures (CPUs and GPUs). Its integration with WarpX, a state-of-the-art PIC code designed to deliver scalable performance on upcoming exascale supercomputers, is also discussed and validated against results from the existing literature.

Dates and versions

cea-03622022 , version 1 (28-03-2022)

Identifiers

Cite

Luca Fedeli, Neïl Zaïm, Antonin Sainte-Marie, Maxence Thévenet, Axel Huebl, et al.. PICSAR-QED: a Monte Carlo module to simulate strong-field quantum electrodynamics in particle-in-cell codes for exascale architectures. New Journal of Physics, 2022, 24 (2), pp.025009. ⟨10.1088/1367-2630/ac4ef1⟩. ⟨cea-03622022⟩
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