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KIAM Preprint  12, Moscow, 2016
Authors: Chechetkin V. M., Dyachenko V. F., Ginzburg S. L., Orlov Y. N., Fimin N. N.
Modeling of collisionless ultrarelativistic electron-proton plasma dynamics in the self-consistent electromagnetic field
The paper describes the evolution of collisionless electron-proton plasma in a self-consistent approximation, moving initially as a rigid body in a vacuum with velocity 0,99999c. The behavior of a dynamical system is examined for 3D model based on solution of Vlasov-Maxwell equations taking into account the retarded potentials. It is shown that the solving of the problem incorrectly analyze in the center of mass system for plasmoid (due to the inability to correct definitions for interacting through the electromagnetic field of relativistic plasma), and it is necessary go to the laboratory frame of reference. In the process, the generation of chaotic solutions of the electromagnetic field of the plasma particles, resulting in a significant change in the distribution function of particles in the phase space, differing from the Maxwell-Juttner form. During the calculations found that the kinetic energy of electron and proton components and energy of self-consistent electromagnetic field aligned. There is a tendency to isotropisation of momenta distribution of the particles along the primary direction of motion of the plasmoid.
ultrarelativistic particles, self-consistent field, distribution function, electron-proton plasma, Vlasov-Maxwell equations, equipartition of energy, Hurst index
Publication language: russian,  pages: 19
Research direction:
Mathematical modelling in actual problems of science and technics
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About authors:
  • Chechetkin Valery Mihailovich, RAS
  • Dyachenko Vladimir Fedotovich,  KIAM RAS
  • Ginzburg Sarra Lazarevna,  KIAM RAS
  • Orlov Yurii Nikolaevich, RAS
  • Fimin Nikolay Nikolaevich, RAS