PIC-JR_hom: a pseudo-spectral Particle-In-Cell formulation with arbitrary charge and current densities time dependencies for the modeling of relativistic plasmas
arxiv(2023)
摘要
This paper introduces a novel formulation of the Particle-In-Cell (PIC)
method for the modeling of relativistic plasmas, which leverages the ability of
the Pseudo-Spectral Analytical Time-Domain solver (PSATD) to handle arbitrary
time dependencies of the charge and current densities during one PIC cycle. The
new formulation is applied to a modified set of Maxwell's equations that was
proposed earlier in the context of divergence cleaning, and to recently
proposed extensions of the PSATD-PIC algorithm. Detailed analysis and testings
revealed that, under some condition, the new formulation can expand the range
of numerical parameters under which PIC simulations are stable and accurate
when modeling relativistic plasmas such as, e.g., plasma-based particle
accelerators.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要