Modelling collisions in a relativistic plasma

Details Modelling collisions in a relativistic plasma Modelling collisions in a relativistic plasma

2009-10-22

arxiv.org/abs/0910.4368v1

Physics

Plasma Physics

Scientific paper

Generalising the work of Lenard and Bernstein, we introduce a new, fully relativistic model to describe collisional plasmas. Like the Fokker-Planck operator, this equation represents velocity diffusion and conserves particle number. However, unlike the Fokker-Planck operator it is linear in the distribution function, and so more amenable to a fluid treatment. By taking moments, we derive a new fluid model, and demonstrate the damping effects of collisions on Langmuir waves.

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