Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

P: Plasmaphysik

P 9: Dense Plasmas and Plasma Diagnostic (Poster Session)

P 9.6: Poster

Dienstag, 3. April 2001, 12:30–15:00, AT2

Analytical approximation for the structure factor of strongly coupled plasmas — •Andreas Selchow¹, Heidi Reinholz², Gerd Röpke¹, and August Wierling¹ — ¹Universität Rostock, FB Physik, 18051 Rostock, Universitätsplatz 3 — ²Department of Physics, The University of WesternAustralia, Nedlands, WA 6907, Australia

Mermin-like expressions for the dynamical structure factor of a strongly coupled OCP and TCP are considered within the Zubarev approach of non-equilibrium physics taking into account conservation laws as boundary conditions. Instead of a free parameter describing a single relaxation time, microscopic expressions for the dynamical collision frequency in the long-wavelength limit are used. The resulting semi-phenomenological structure factor is applicable in the whole k−ω plane. Numerical results are compared with simulations of Zwicknagel et al..