Dynamical Properties and Plasmon Dispersion of a Weakly Degenerate Correlated One-Component Plasma

Details Dynamical Properties and Plasmon Dispersion of a Weakly Degenerate Correlated One-Component Plasma Dynamical Properties and Plasmon Dispersion of a Weakly Degenerate Correlated One-Component Plasma

2000-12-14

arxiv.org/abs/physics/0012027v1

Phys. Rev. E 64, 016409 (2001)

Physics

Plasma Physics

23 pages, includes 7 ps/eps-figures and 2 tables

Scientific paper

10.1103/PhysRevE.64.016409

Classical Molecular Dynamics (MD) simulations for a one-component plasma (OCP) are presented. Quantum effects are included in the form of the Kelbg potential. Results for the dynamical structure factor are compared with the Vlasov and RPA (random phase approximation) theories. The influence of the coupling parameter $\Gamma$, degeneracy parameter $\rho \Lambda^3$ and the form of the pair interaction on the optical plasmon dispersion is investigated. An improved analytical approximation for the dispersion of Langmuir waves is presented.

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