2 papers
physics.plasm-ph2025
Grid instability growth rates for explicit, electrostatic momentum- and energy-conserving particle-in-cell algorithms
Luke C Adams, Gregory R Werner, John R Cary
When the Debye length is not resolved in a simulation using the most common particle-in-cell (PIC) algorithm, the plasma will unphysically heat until the Debye length becomes resol…
physics.plasm-ph2025
Suppressing grid instability and noise in particle-in-cell simulation by smoothing
Gregory R. Werner, Luke C. Adams, John R. Cary
Smoothing short-wavelength charge density variations can stabilize explicit electrostatic particle-in-cell (PIC) plasma simulations against grid heating and cold beam instabilities…