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physics.comp-ph2024
A multiscale hybrid Maxwellian-Monte-Carlo Coulomb collision algorithm for particle simulations
G. Chen, A. J. Stanier, L. Chacón +2
Coulomb collisions in particle simulations for weakly coupled plasmas are modeled by the Landau-Fokker-Planck equation, which is typically solved by Monte-Carlo (MC) methods. One o…
physics.comp-ph2023
Asymptotic-preserving gyrokinetic implicit particle-orbit integrator for arbitrary electromagnetic fields
Lee Ricketson, Luis Chacón
We extend the asymptotic preserving and energy conserving time integrator for charged-particle motion developed in [Ricketson & Chacón, JCP, 2020] to include finite Larmor-radius (…
physics.comp-ph2022★ 15 cited
An implicit, conservative and asymptotic-preserving electrostatic particle-in-cell algorithm for arbitrarily magnetized plasmas in uniform magnetic fields
Guangye Chen, Luis Chacón
We introduce a new electrostatic particle-in-cell algorithm capable of using large timesteps compared to particle gyro-period under a uniform external magnetic field. The algorithm…