Equation of state for hard square lattice gases

TL;DR

This paper introduces a simple and accurate equation of state for a lattice gas of hard squares, validated against Monte Carlo simulations, especially effective in describing the disordered fluid phase.

Contribution

The paper presents a new, straightforward equation of state for hard square lattice gases that closely matches simulation data in the fluid phase.

Findings

Equation of state accurately predicts fluid phase behavior.

Good agreement with Monte Carlo simulation results.

Effective in modeling disordered lattice gas systems.

Abstract

A simple equation of state for a lattice gas of hard squares of side length $\lambda$ is presented. Comparing to the Monte Carlo simulations, the new equation of state is found to be quite accurate for the disordered fluid phase.