A Particle-In-Cell Code Comparison for Ion Acceleration: EPOCH, LSP, and WarpX

Abstract

There are now more Particle-in-Cell (PIC) codes than ever before that researchers use to simulate intense laser-plasma interactions. To date, there have been relatively few direct comparisons of these codes in the literature, especially for relativistic intensity lasers interacting with thin overdense targets. To address this we perform a code comparison of three PIC codes: EPOCH, LSP, and WarpX for the problem of laser-driven ion acceleration in a 2D(3v) geometry for a $10^{20}$ W cm${}^{-2}$ intensity laser. We examine the plasma density, ion energy spectra, and laser-plasma coupling of the three codes and find strong agreement. We also run the same simulation 20 times with different random seeds to explore statistical fluctuations of the outputs. We then compare the execution times and memory usage of the codes (without "tuning" to improve performance) using between 1 and 48 processors on one node. We provide input files to encourage larger and more frequent code comparisons in this field.

arXiv comment7 pages, 6 figures

References in corpus (17)

• Ion acceleration by superintense laser-plasma interaction
• SMILEI: a collaborative, open-source, multi-purpose particle-in-cell code for plasma simulation
• The Santa Barbara cluster comparison project: a comparison of cosmological hydrodynamics solutions
• A spectral, quasi-cylindrical and dispersion-free Particle-In-Cell algorithm
• Simulation benchmarks for low-pressure plasmas: capacitive discharges
• A test suite for quantitative comparison of hydrodynamics codes in astrophysics
• Warp-X: a new exascale computing platform for beam-plasma simulations
• A Comparison of Cosmological Codes: Properties of Thermal Gas and Shock Waves in Large Scale Structures
• Computational Eulerian Hydrodynamics and Galilean Invariance
• VPIC 2.0: Next Generation Particle-in-Cell Simulations
• SHARP: A Spatially Higher-order, Relativistic Particle-in-Cell Code
• Multidimensional effects on proton acceleration using high-power intense laser pulses
• A Set of Benchmark Tests for Validation of 3D Particle In Cell Methods
• Rise time of proton cut-off energy in 2D and 3D PIC simulations
• A Particle-In-Cell Code Comparison for Ion Acceleration: EPOCH, LSP, and WarpX
• Optimising PICCANTE - an Open Source Particle-in-Cell Code for Advanced Simulations on Tier-0 Systems
• 3D PIC simulations of electron beams created via reflection of intense laser light from a water target

Cited by in corpus (3)

• A Particle-In-Cell Code Comparison for Ion Acceleration: EPOCH, LSP, and WarpX
• Intensity and Dimensionality-Dependent Dynamics of Laser-Proton Acceleration in 1D, 2D, and 3D Particle-in-Cell Simulations
• A Fully Three-Dimensional Kinetic Particle-In-Cell Framework for Modeling Laser-Dielectric Interactions: Few-Cycle Pulse Damage