Dynamical correlations and collective excitations of Yukawa liquids

Z. Donkó, G. J. Kalman, P. Hartmann

Research output: Contribution to journalArticle

112 Citations (Scopus)

Abstract

In dusty (complex) plasmas, containing mesoscopic charged grains, the grain-grain interaction in many cases can be well described through a Yukawa potential. In this review we summarize the basics of the computational and theoretical approaches capable of describing many-particle Yukawa systems in the liquid and solid phases and discuss the properties of the dynamical density and current correlation spectra of three-and two-dimensional strongly coupled Yukawa systems, generated by molecular dynamics simulations. We show details of the ω(k) dispersion relations for the collective excitations in these systems, as obtained theoretically following the quasi-localized charge approximation, as well as from the fluctuation spectra created by simulations. The theoretical and simulation results are also compared with those obtained in complex plasma experiments.

Original languageEnglish
Article number413101
JournalJournal of Physics Condensed Matter
Volume20
Issue number41
DOIs
Publication statusPublished - Oct 15 2008

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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