Rational-function approximation for fluids interacting via piece-wise constant potentials
Soft Condensed Matter
2012-07-13 v2 Statistical Mechanics
Chemical Physics
Abstract
The structural properties of fluids whose molecules interact via potentials with a hard-core plus n piece-wise constant sections of different widths and heights are derived using a (semi-analytical) rational-function approximation method. The results are illustrated for the cases of a square-shoulder plus square-well potential and a shifted square-well potential and compared both with simulation data and with those that follow from the (numerical) solutions of the Percus-Yevick integral equation.
Cite
@article{arxiv.1201.2771,
title = {Rational-function approximation for fluids interacting via piece-wise constant potentials},
author = {A. Santos and S. B. Yuste and M. López de Haro},
journal= {arXiv preprint arXiv:1201.2771},
year = {2012}
}
Comments
12 pages, 2 figures; submitted to a special issue of Condensed Matter Physics in occasion of the 60th birthday of Prof. Orest Pizio