DYNAMIC STRUCTURAL FACTORS OF THE MODEL NONIDEAL PLASMA

Abstract

In this work, dynamic structural factors (DSFs) of the model two-component hydrogen plasma were calculated. They are in good agreement both quantitatively and qualitatively with the data of numerical experiments of other researchers [1, 2]. These characteristics make it possible to investigate both the dispersion of waves propagating in a dense nonideal plasma and their dissipation [3]. The authors used the method of moments, which does not require the use of small parameters for solving problems. The mathematical foundations of this method make it possible to use it for various effective interparticle interaction potentials in an equilibrium plasma. A special feature of this approach is the necessity to know the expression for the so-called Nevanlinna parameter-function, which is included in the calculation relations. In this paper, the ratio used is the one, which was proposed earlier in [4]. An important advantage of this approach is the ability to determine the dynamic characteristics of a system of charged particles using the calculated static characteristics. The latter were found from the solution of the Ornstein-Zernike equation in the hyper-netted chain approximation using the potentials indicated in this

Keywords: static structure factor, dynamic structure factor, method of moments, Nevanlinna formula, Nevanlinna parameter-function, loss function, fluctuation-dissipative theorem.