Wünsch, Kathrin, Hilse, P., Schlanges, M. and Gericke, Dirk O.. (2008) Structure of strongly coupled, multi-component plasmas. Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol.77 (No.5). p. 6404. ISSN 1539-3755

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Abstract

We investigate the short-range structure in strongly coupled fluidlike plasmas using the hypernetted chain approach generalized to multicomponent systems. Good agreement with numerical simulations validates this method for the parameters considered. We found a strong mutual impact on the spatial arrangement for systems with multiple ion species which is most clearly pronounced in the static structure factor. Quantum pseudopotentials were used to mimic diffraction and exchange effects in dense electron-ion systems. We demonstrate that the different kinds of pseudopotentials proposed lead to large differences in both the pair distributions and structure factors. Large discrepancies were also found in the predicted ion feature of the x-ray scattering signal, illustrating the need for comparison with full quantum calculations or experimental verification.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Strongly coupled plasmas, Plasma diagnostics, Physical measurements, Dense plasma focus, Plasma (Ionized gases)
Journal or Publication Title:	Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)
Publisher:	American Physical Society
ISSN:	1539-3755
Date:	12 May 2008
Volume:	Vol.77
Number:	No.5
Page Range:	p. 6404
Identification Number:	10.1103/PhysRevE.77.056404
Status:	Peer Reviewed
Access rights to Published version:	Open Access
Funder:	Engineering and Physical Sciences Research Council (EPSRC), Deutsche Forschungsgemeinschaft (DFG)
Grant number:	SFB 652 (DFG)
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URI:	http://wrap.warwick.ac.uk/id/eprint/1502

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