Two alternative methods for solving the Vlasov Fokker–Planck equation

Abstract

The expansion of moments technique for generating short time expansions for the moments with the distribution function is used to solve the reduced Vlasov Fokker–Planck equation. The obtained results are compared with those found by other theories such as the operator technique. The results obtained by expansion of moments confirm the correctness of those obtained by the operator method. The method is straightforward and concise, and its applications are promising and can be applied to other moment equations arising in physics.

Keywords:

• Expansion of moments
• Operator method
• Vlasov Fokker–Planck equation

Acknowledgements

The authors would like to thank the referees for their comments and discussions.