The Dynamical Structure Function of the One-Component Plasma Revisited

I. Korolov, G. J. Kalman, L. Silvestri, Z. Donkó

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We present high precision Molecular Dynamics simulations for the dynamical structure function, S (k, ω), of the classical Coulomb One Component Plasma (OCP), for a wide range of the coupling parameter Γ (from 0.05 to 10 000). We follow the positive-to-negative transition of the slope of the ω (k) dispersion curve at small wave numbers caused by the onset of correlations with increasing coupling. The high signal-to-noise ratio of the data over several orders of magnitude allows examination of a wide dynamical range of S (k, ω), including extreme values of ω and k, and the identification of waves at higher harmonics of the plasma frequency. Sum rules are found to be accurately satisfied.

Original languageEnglish
Pages (from-to)421-427
Number of pages7
JournalContributions to Plasma Physics
Volume55
Issue number5
DOIs
Publication statusPublished - May 1 2015

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Keywords

  • Dispersion
  • Dynamical structrure function
  • MD simulation
  • OCP

ASJC Scopus subject areas

  • Condensed Matter Physics

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