Energy conserving particle-in-cell methods for relativistic Vlasov--Maxwell equations of laser-plasma interaction
arXiv:2203.06513 · doi:10.1016/j.jcp.2022.111733
Abstract
Energy conserving particle-in-cell schemes are constructed for a class of reduced relativistic Vlasov--Maxwell equations of laser-plasma interaction. Discrete Poisson equation is also satisfied by the numerical solution. Specifically, distribution function is discretized using particle-in-cell method, discretization of electromagnetic fields is done using compatible finite element method in the framework of finite element of exterior calculus, and time discretization used is based on discrete gradient method combined with Poisson splitting. Numerical experiments of parametric instability are done to validate the conservation properties and good long time behavior of the numerical methods constructed.
arXiv comment22 pages, 8 figures
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