Suppressing the Numerical Cherenkov Instability in FDTD PIC Codes
Plasma Physics
2014-07-29 v1 Numerical Analysis
Accelerator Physics
Computational Physics
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.
Keywords
Cite
@article{arxiv.1401.0838,
title = {Suppressing the Numerical Cherenkov Instability in FDTD PIC Codes},
author = {Brendan B. Godfrey and Jean-Luc Vay},
journal= {arXiv preprint arXiv:1401.0838},
year = {2014}
}
Comments
13 pages, 5 figures