Cluster properties of the one-dimensional lattice gas: the microscopic meaning of grand potential

Phys Rev E Stat Nonlin Soft Matter Phys. 2013 Feb;87(2):022131. doi: 10.1103/PhysRevE.87.022131. Epub 2013 Feb 21.

Abstract

Using a concrete example, we demonstrate how the combinatorial approach to a general system of particles, which was introduced in detail in an earlier paper [Fronczak, Phys. Rev. E 86, 041139 (2012)], works and where this approach provides a genuine extension of results obtained through more traditional methods of statistical mechanics. We study the cluster properties of a one-dimensional lattice gas with nearest-neighbor interactions. Three cases (the infinite temperature limit, the range of finite temperatures, and the zero temperature limit) are discussed separately, yielding interesting results and providing alternative proof of known results. In particular, the closed-form expression for the grand partition function in the zero temperature limit is obtained, which results in the nonanalytic behavior of the grand potential, in accordance with the Yang-Lee theory.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Computer Simulation
  • Energy Transfer*
  • Gases / chemistry*
  • Models, Chemical*
  • Models, Statistical*
  • Phase Transition*
  • Temperature

Substances

  • Gases