Parametrization of pair correlation function and static structure factor of the one component plasma across coupling regimes
| Autor: | Nicolas Desbiens, Philippe Arnault, Jean Clérouin |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Yukawa potential FOS: Physical sciences Plasma Warm dense matter Condensed Matter Physics Radial distribution function 01 natural sciences Physics - Plasma Physics 010305 fluids & plasmas Plasma Physics (physics.plasm-ph) Coupling (physics) Physics::Plasma Physics 0103 physical sciences Coulomb Statistical physics 010306 general physics Structure factor Parametrization |
| DOI: | 10.48550/arxiv.1606.04675 |
| Popis: | We present a parametrization of the pair correlation function and the static structure factor of the Coulomb one component plasma (OCP) from the weakly coupled regime to the strongly coupled regime. Recent experiments strongly suggest that the OCP model can play the role of a reference system for warm dense matter. It can provide the ionic static structure factor that is necessary to interpret the x-ray Thomson scattering measurements, for instance. We illustrate this with the interpretation of a x-ray diffraction spectrum recently measured, using a Bayesian method that requires many evaluations of the static structure factor to automatically calibrate the parameters. For strongly coupled dusty plasmas, the proposed parametrization of the Coulomb OCP pair correlation function can be related to the Yukawa one, including screening. Further prospects to parametrize the static structure of Yukawa systems are also discussed. Comment: 8 pages, 9 figures |
| Databáze: | OpenAIRE |
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