Fluctuation-theory constraint for extensive entropy in Monte-Carlo simulations

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12 Scopus citations

Abstract

The entropy per particle in most Monte-Carlo simulations is size dependent due to correlated energy fluctuations. Guided by nanothermodynamics, we find a constraint for the Ising model that enhances the fluctuations and lowers the free energy, while making the entropy homogeneous, additive, and extensive. Although the average interaction energy becomes size dependent, the resulting distribution of energies provides a mechanism for the heterogeneity found in the dynamics of many materials.

Original languageEnglish (US)
Pages (from-to)495-499
Number of pages5
JournalEuropean Physical Journal B
Volume67
Issue number4
DOIs
StatePublished - Feb 1 2009

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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