Particle integrator for particle-in-cell simulations of ultra-high intensity laser-plasma interactions
نویسندگان
چکیده
Particle-in-cell codes are the most widely used simulation tools for kinetic studies of ultra-intense laser-plasma interactions. Using motion a single electron in plane electromagnetic wave as benchmark problem, we show surprising deterioration numerical accuracy PIC algorithm with increasing normalized amplitude typical time-step and grid sizes. Two significant sources errors identified: strong acceleration near stopping points temporal field interpolation. We propose adaptive sub-cycling coupled third order interpolation magnetic electric an efficient remedy that dramatically improves particle integrator.
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ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 2021
ISSN: ['1090-2716', '0021-9991']
DOI: https://doi.org/10.1016/j.jcp.2021.110233