Precise Simulation of Near-Critical Fluid Coexistence

Young C. Kim, Michael E. Fisher, Erik Luijten

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

We present a novel method to derive liquid-gas coexisting densities, [Formula presented], from grand canonical simulations (without knowledge of [Formula presented] or criticality class). The minima of [Formula presented] in an [Formula presented] box with [Formula presented] are used to generate recursively an unbiased universal finite-size scaling function. Monte Carlo data for a hard-core square-well fluid and for the restricted primitive model electrolyte yield [Formula presented] to [Formula presented] of [Formula presented] down to 1 part in [Formula presented] of [Formula presented] (and confirm well Ising character). Pressure mixing in the scaling fields is unequivocally revealed and indicates Yang-Yang ratios [Formula presented] and [Formula presented] for the two models, respectively.

Original languageEnglish (US)
JournalPhysical review letters
Volume91
Issue number6
DOIs
StatePublished - Aug 6 2003

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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