Pair correlation function of short-ranged square-well fluids

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dc.creatorLargo, J.
dc.creatorSolana, J. R.
dc.creatorYuste, S. B.
dc.creatorSantos, A.
dc.date2004-10-27
dc.date.accessioned2026-07-07T03:01:44Z
dc.date.available2026-07-07T03:01:44Z
dc.descriptionWe have performed extensive Monte Carlo simulations in the canonical (NVT) ensemble of the pair correlation function for square-well fluids with well widths $λ-1$ ranging from 0.1 to 1.0, in units of the diameter $σ$ of the particles. For each one of these widths, several densities $ρ$ and temperatures $T$ in the ranges $0.1\leqρσ^3\leq 0.8$ and $T_c(λ)\lesssim T\lesssim 3T_c(λ)$, where $T_c(λ)$ is the critical temperature, have been considered. The simulation data are used to examine the performance of two analytical theories in predicting the structure of these fluids: the perturbation theory proposed by Tang and Lu [Y. Tang and B. C.-Y. Lu, J. Chem. Phys. {\bf 100}, 3079, 6665 (1994)] and the non-perturbative model proposed by two of us [S. B. Yuste and A. Santos, J. Chem. Phys. {\bf 101}, 2355 (1994)]. It is observed that both theories complement each other, as the latter theory works well for short ranges and/or moderate densities, while the former theory does for long ranges and high densities.
dc.description10 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0410702
dc.identifierhttp://arxiv.org/abs/cond-mat/0410702
dc.identifierJ. Chem. Phys. 122, 084510 (2005)
dc.identifierdoi:10.1063/1.1855312
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25155
dc.subjectStatistical Mechanics
dc.subjectSoft Condensed Matter
dc.subjectChemical Physics
dc.titlePair correlation function of short-ranged square-well fluids
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