Suppressing the Numerical Cherenkov Instability in FDTD PIC Codes
  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. 
Brendan B. Godfrey and Jean-Luc Vay
physics.plasm-ph math.NA physics.acc-ph physics.comp-ph