We consider a Vlasov equation for a plasma with a given constant magnetic field, and introduce a white noise perturbation of the electric field in the electrostatic approximation, with a discussion of the motivations of such random perturbation. We prove that diffusion in velocity emerges in a suitable scaling limit of the noise, and also discuss the physical relevance of this result.

A scaling limit for Vlasov equations with electrostatic fluctuations

Flandoli F.;Luo D.
2026

Abstract

We consider a Vlasov equation for a plasma with a given constant magnetic field, and introduce a white noise perturbation of the electric field in the electrostatic approximation, with a discussion of the motivations of such random perturbation. We prove that diffusion in velocity emerges in a suitable scaling limit of the noise, and also discuss the physical relevance of this result.
2026
Settore MAT/06 - Probabilita' e Statistica Matematica
Settore MATH-03/B - Probabilità e statistica matematica
electrostatic fluctuation; plasma; scaling limit; transport noise; Vlasov equation
   Noise in Fluids
   NoisyFluid
   European Commission
   101053472
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/169805
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