Numerical simulation of plasma dynamics in an alternating electric field

Numerical simulation of turbulent plasmas on the basis of numerical solution of collisionless kinetic equations with a self-consistent field by the particle in cell method requires a very large number of macroparticles (on the order of 50,000 or more) even for a one-dimensional model. In the present paper, calculations are carried out for a relatively small number of particles. The reduction in the number of particles and computational labor is achieved by using macroparticles with different masses and charges and by adjusting the values of the latter to the values of the distribution function in the corresponding regions of the phase space. Such a selection of particle 'weights' makes it possible to obtain a better approximation of the distribution function at a given number of particles.