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Structure of strongly coupled multicomponent plasmas
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Wuensch, K., Hilse, P., Schlanges, M. and Gericke, Dirk O. (2008) Structure of strongly coupled multicomponent plasmas. Physical Review E, Vol.77 (No.5, Pt.2). doi:10.1103/PhysRevE.77.056404 ISSN 1539-3755.
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Official URL: http://dx.doi.org/10.1103/PhysRevE.77.056404
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, Engineering and Medicine > Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Plasma (Ionized gases), Pseudopotential method | ||||
| Journal or Publication Title: | Physical Review E | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1539-3755 | ||||
| Official Date: | May 2008 | ||||
| Dates: |
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| Volume: | Vol.77 | ||||
| Number: | No.5, Pt.2 | ||||
| Number of Pages: | 9 | ||||
| DOI: | 10.1103/PhysRevE.77.056404 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Deutsche Forschungsgemeinschaft (DFG), Engineering and Physical Sciences Research Council (EPSRC) | ||||
| Grant number: | SFB 652 (DFG) |
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