A Lattice-Gas Model of Microemulsions

TL;DR

This paper introduces a lattice gas model for simulating the nonequilibrium behavior of microemulsions, allowing for complex interactions and demonstrating correct phenomenology through simulations.

Contribution

It reformulates an existing lattice gas model with a microscopic approach to include complex interactions, enhancing the modeling of microemulsions.

Findings

Model exhibits correct microemulsion phenomenology

Demonstrates the ability to simulate nonequilibrium dynamics

Contrasts with equilibrium and other lattice gas models

Abstract

We develop a lattice gas model for the nonequilibrium dynamics of microemulsions. Our model is based on the immiscible lattice gas of Rothman and Keller, which we reformulate using a microscopic, particulate description so as to permit generalisation to more complicated interactions, and on the prescription of Chan and Liang for introducing such interparticle interactions into lattice gas dynamics. We present the results of simulations to demonstrate that our model exhibits the correct phenomenology, and we contrast it with both equilibrium lattice models of microemulsions, and to other lattice gas models.