ラングミュア乱流によるイオン音波の異常減衰

概要

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Ion acoustic wave is discussed about its damping caused by isotropic and homogeneous Langmuir turbulence. A degree of the turbulent field-energy is assumed to be of the order 10^<-2> in comparison with the electron thermal energy. Calculations are carried out in statistical treatment based on the Vlasov propagator. The time average is taken in an adequate interval Δt, i. e. ω_p^<-1><<Δt<<ω^<-1>, ω_p being the plasma frequency and ω the ion acoustic one. The damping ratio for (kλ_D)^2<<1 is shown much greater than that of Landau dam ping, where λ_D is the Debye shielding length.
山梨大学の論文