Blockage induced condensation controlled by a local reaction

TL;DR

This paper studies how local blockages in stationary Zero Range models can induce and control condensation phenomena, revealing a phase transition characterized by non-analyticities in the current versus blockage parameter.

Contribution

It introduces a local feedback mechanism on hopping rates to control particle condensation in Zero Range models, highlighting a new phase transition behavior.

Findings

Local feedback controls particle fraction in condensation.

Current versus blockage parameter shows two non-analytic points.

Condensation can be induced and tuned by local blockage modifications.

Abstract

We consider the set-up of stationary Zero Range models and discuss the onset of condensation induced by a local blockage on the lattice. We show that the introduction of a local feedback on the hopping rates allows to control the particle fraction in the condensed phase. This phenomenon results in a current vs. blockage parameter curve characterized by two non--analyticity points.