Phase diagram and universality of the Lennard-Jones gas-liquid system

Hiroshi Watanabe, Nobuyasu Ito, Chin Kun Hu

Research output: Contribution to journalArticlepeer-review

93 Citations (Scopus)

Abstract

The gas-liquid phase transition of the three-dimensional Lennard-Jones particles system is studied by molecular dynamics simulations. The gas and liquid densities in the coexisting state are determined with high accuracy. The critical point is determined by the block density analysis of the Binder parameter with the aid of the law of rectilinear diameter. From the critical behavior of the gas-liquid coexisting density, the critical exponent of the order parameter is estimated to be β = 0.3285(7). Surface tension is estimated from interface broadening behavior due to capillary waves. From the critical behavior of the surface tension, the critical exponent of the correlation length is estimated to be ν = 0.63(4). The obtained values of β and ν are consistent with those of the Ising universality class.

Original languageEnglish
Article number204102
JournalJournal of Chemical Physics
Volume136
Issue number20
DOIs
Publication statusPublished - 2012 May 28
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fingerprint

Dive into the research topics of 'Phase diagram and universality of the Lennard-Jones gas-liquid system'. Together they form a unique fingerprint.

Cite this