Journal
COMPUTER PHYSICS COMMUNICATIONS
Volume 156, Issue 1, Pages 73-85Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0010-4655(03)00437-5
Keywords
charge conservation; continuity equation; EM PIC code
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We developed a fast algorithm for solving the current density satisfying the continuity equation of charge in electromagnetic particle-in-cell (PIC) simulations. In PIC simulations of the charge conservation, a particle trajectory over one time step is conventionally assumed to be a straight line. In the present new scheme we assume that a particle trajectory is a zigzag line. Compared with the Villasenor-Buneman method and Esirkepov's method, the present scheme has an advantage in computation speed without any substantial distortion of physics. (C) 2003 Elsevier B.V. All rights reserved.
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