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

Abstract

We demonstrate, with a concrete example, how the combinatorial approach to a general system of particles, which was introduced in detail in the earlier paper arXiv:1205.4986, works and where it enters to provide a genuine extension of results obtainable by more traditional methods of statistical mechanics. To this end, an effort is made to study cluster properties of the 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 some new results and providing alternative proofs 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 non-analytic behavior of the grand potential, in accordance with the Yang-Lee theory.

This paper is a sequel to our previous paper arXiv:1205.4986

References in corpus (3)

• Clusters in Simple Fluids
• An Exact Solution for the Lattice Gas Model in One Dimension
• The microscopic meaning of grand potential resulting from combinatorial approach to a general system of particles

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