Analytic fit to the one-component-plasma structure factor
- 1 November 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 44 (10) , 6508-6512
- https://doi.org/10.1103/physreva.44.6508
Abstract
We use a nonlinear least-squares-fitting program to find an analytic fit to the one-component plasma fluid structure factor S(q,Γ) over the ranges 0≤q≤21.75 and 1≤Γ≤225. The S(q,Γ) function is generated as a table from the solution of the modified hypernetted chain integral equation. The table is fitted with polynomials in q and Γ, using a total of 175 coefficients. The overall fit is good, suggesting that the fitting method might be applied successfully to other distribution functions.Keywords
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