Dynamics of charge density fluctuations in two-component hydrogen plasma
Abstract
A systematic study is made of the dynamical properties of the charge density fluctuations in strongly coupled two-component plasmas. The time-correlation function of the partial density fluctuations is described with the use of the memory function formalism. A second-order memory function is approximately expressed in terms of its self-part by taking into account the total momentum conservation law. After assuming a Gaussian time-dependence for the self-part, the excitation spectrum of the charge density fluctuation is calculated for the semi-classical hydrogen plasma, and is in fairly good agreement with the molecular dynamics calculation due to Hansen & McDonald. It is found that the collisional effects play an important role in the strongly coupled system.
- Publication:
-
Journal of Plasma Physics
- Pub Date:
- February 1982
- DOI:
- 10.1017/S0022377800026374
- Bibcode:
- 1982JPlPh..27...55Y
- Keywords:
-
- Hydrogen Plasma;
- Nonuniform Plasmas;
- Plasma Density;
- Plasma Dynamics;
- Strongly Coupled Plasmas;
- Collisional Plasmas;
- Conservation Laws;
- Correlation;
- Electron Flux Density;
- Ion Charge;
- Normal Density Functions;
- Time Dependence;
- Plasma Physics