Molecular dynamics simulation for modeling plasma spectroscopy

Details Molecular dynamics simulation for modeling plasma spectroscopy Molecular dynamics simulation for modeling plasma spectroscopy

2002-10-31

arxiv.org/abs/cond-mat/0211003v1

Physics

Condensed Matter

Statistical Mechanics

submitted for publication in the proceedings of the International Conference on Strongly Coupled Coulomb Systems, Journal of P

Scientific paper

10.1088/0305-4470/36/22/329

The ion-electron coupling properties for a ion impurity in an electron gas and for a two component plasma are carried out on the basis of a regularized electron-ion potential removing the short-range Coulomb divergence. This work is largely motivated by the study of radiator dipole relaxation in plasmas which makes a real link between models and experiments. Current radiative property models for plasmas include single electron collisions neglecting charge-charge correlations within the classical quasi-particle approach commonly used in this field. The dipole relaxation simulation based on electron-ion molecular dynamics proposed here will provide means to benchmark and improve model developments. Benefiting from a detailed study of a single ion imbedded in an electron plasma, the challenging two-component ion-electron molecular dynamics simulations are proven accurate. They open new possibilities to obtain reference lineshape data.

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