A generalized implicit algorithm for multi-dimensional particle-in-cell simulations in Cartesian geometry

Petrov, G. M.; Davis, J.
July 2011
Physics of Plasmas;Jul2011, Vol. 18 Issue 7, p073102
Academic Journal
An implicit multi-dimensional particle-in-cell (PIC) code is developed to study the interaction of ultrashort pulse lasers with matter. The algorithm is based on current density decomposition and is only marginally more complicated compared to explicit PIC codes, but it completely eliminates grid heating and possesses good energy conserving properties with relaxed time step and grid resolution. This is demonstrated in a test case study, in which high-energy protons are generated from a thin carbon foil at solid density using linear and circular polarizations. The grid heating rate is estimated to be 1-10 eV/ps.


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