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arXiv · 1401.0838

Suppressing the Numerical Cherenkov Instability in FDTD PIC Codes

Brendan B. Godfrey·Jean-Luc Vay
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Abstract

A procedure for largely suppressing the numerical Cherenkov instability in finite difference time-domain (FDTD) particle-in-cell (PIC) simulations of cold, relativistic beams is derived, and residual growth rates computed and compared with WARP code simulation results. Sample laser-plasma acceleration simulation output is provided to further validate the new procedure.

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Brendan B. Godfrey, Jean-Luc Vay. 2014-01-04. Suppressing the Numerical Cherenkov Instability in FDTD PIC Codes. https://doi.org/10.1016/j.jcp.2014.02.022

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