Three-dimensional relativistic particle-in-cell hybrid code based on an exponential integrator

Details Three-dimensional relativistic particle-in-cell hybrid code based on an exponential integrator Three-dimensional relativistic particle-in-cell hybrid code based on an exponential integrator

2010-05-05

arxiv.org/abs/1005.0739v1

Physics

Computational Physics

Scientific paper

In this paper we present a new three dimensional (3D) full electromagnetic relativistic hybrid plasma code H-VLPL (hybrid virtual laser plasma laboratory). The full kinetic particle-in-cell (PIC) method is used to simulate low density hot plasmas while the hydrodynamic model applies to the high density cold background plasma. To simulate the linear electromagnetic response of the high density plasma, we use a newly developed form of an exponential integrator method. It allows us to simulate plasmas of arbitrary densities using large time steps. The model reproduces the plasma dispersion and gives correct spatial scales like the plasma skin depth even for large grid cell sizes. We test the hybrid model validity by applying it to some physical examples.

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