Theoretical approaches to the structural properties of the square-shoulder fluid
arXiv:1601.00457 · doi:10.1080/00268976.2016.1154199
Abstract
A comparison of simulation results with the prediction of the structural properties of square-shoulder fluids is carried out to assess the performance of three theories: Tang--Lu's first-order mean spherical approximation, the simplified exponential approximation of the latter and the rational-function approximation. These three theoretical developments share the characteristic of being analytical in Laplace space and of reducing in the proper limit to the Percus--Yevick result for the hard-sphere fluid. Overall, the best agreement with the simulation data is obtained with the simplified exponential approximation.
arXiv comment14 pages, 7 figures; v2: published version. Free online access (first 50 downloads) at http://www.tandfonline.com/eprint/5yrHdniR9766VnXjjKBn/full
References in corpus (6)
- Effective forces in colloidal mixtures: from depletion attraction to accumulation repulsion
- Zero temperature phase diagram of the square-shoulder system
- Pair correlation function of short-ranged square-well fluids
- Thermodynamic, Dynamic and Structural Anomalies for Shoulder-like potentials
- Alternative Approaches to the Equilibrium Properties of Hard-Sphere Liquids
- Structure of the square-shoulder fluid