@article {5028,
title = {Coexistence and criticality of fluids with long-range potentials},
journal = {Journal of Chemical Physics},
volume = {114},
number = {1},
year = {2001},
note = {ISI Document Delivery No.: 388LUTimes Cited: 35Cited Reference Count: 44},
month = {Jan},
pages = {399-408},
type = {Article},
abstract = {Using mixed-field finite-size scaling simulations, we have investigated the liquid-vapor critical behavior of three-dimensional fluids;vith algebraically decaying attractive pair interactions, which vary like -1/r(3+sigma) with sigma = 3, 1, and 0.1. The finite-size scaling analysis was carried out by matching the critical ordering operator distribution, p(L)(x), against the limiting Ising form, i.e., Ising criticality was assumed. When the potential is short-ranged (sigma = 3) the simulation results are entirely consistent with the expected Ising critical behavior. When the potential is long-ranged (sigma = 1, 0.1), however, marked deviations from Ising behavior are observed, particularly in the form of the critical ordering operator distribution, and in the estimated values of beta/nu. The results are consistent with non-Ising criticality which is predicted theoretically in fluid with long-range interactions. Some results from Gibbs ensemble simulations are also provided in order to sketch the shape of the liquid-vapor coexistence envelope. We discuss the relevance of our results to the current issue of criticality in ionic fluids. (C) 2001 American Institute of Physics.},
keywords = {CRITICAL EXPONENTS, CRITICAL-BEHAVIOR, CRITICAL-POINT, CURVE DIAMETER, GIBBS ENSEMBLE, IONIC BINARY MIXTURE, LENNARD-JONES FLUID, MONTE-CARLO, PHASE-TRANSITIONS, RESTRICTED PRIMITIVE MODEL},
isbn = {0021-9606},
url = {://000166182900046},
author = {Camp, P. J. and Patey, G. N.}
}