Novel phase-separation transition in one-dimensional driven models

TL;DR

This paper introduces a new class of one-dimensional driven diffusive models that exhibit a unique fluctuating phase-separated state, differing from previous models, and analyzes the nature of the phase transition using a recent criterion.

Contribution

It presents a novel one-dimensional driven model with a fluctuating phase-separated state, expanding understanding of phase transitions in such systems.

Findings

Models exhibit fluctuating phase separation in 1D

Phase transition analyzed with new criterion

Distinct from previously studied models

Abstract

A class of models of driven diffusive systems which is shown to exhibit phase separation in $d=1$ dimensions is introduced. Unlike all previously studied models exhibiting similar phenomena, here the phase separated state is fluctuating in the bulk of the macroscopic domains. The nature of the phase transition from the homogeneous to the phase separated state is discussed in view of a recently introduced criterion for phase separation in one-dimensional driven systems.