Күрделі құрамды тозаңды плазма бөлшектерінің спектрлік функциясын зерттеу

K.N. Dzhumagulova; T.S. Ramazanov; R.U. Masheeva; G.L. Gabdullina; Z. Donco

Authors

K.N. Dzhumagulova IETP, Al-Farabi Kazakh National University, Kazakhstan, Almaty
T.S. Ramazanov IETP, Al-Farabi Kazakh National University, Kazakhstan, Almaty
R.U. Masheeva IETP, Al-Farabi Kazakh National University, Kazakhstan, Almaty
G.L. Gabdullina Al-Farabi Kazakh National University, Kazakstan, Almaty
Z. Donco Vigner Institute of Solid State and Body of Physics Research Center Budapest, Hungary

Keywords:

dusty plasma, velocity autocorrelation functions, spectral function

Abstract

In this paper, the results of theoretical investigations of dust particles fluctuations using Fourier analysis of the velocity autocorrelation function were presented. The Langevin dynamics method was used to solve the dust particles equations of motion. The Yukawa potential was used as an interaction potential. It was presented, that the real and imaginary parts of the spectral function has a maximum near the plasma frequency of dust particles at large values of the coupling parameter and low values of the coefficient of friction.