Universality properties of steady driven coagulation with collisional evaporation

TL;DR

This paper investigates the universal and non-universal behaviors in a steady driven coagulation system with collisional evaporation, revealing regime distinctions and a turbulence-like logarithmic correction.

Contribution

It introduces a comprehensive analysis of coagulation with evaporation, identifying universal regimes and the conditions leading to non-universal behaviors, including a turbulence-inspired correction.

Findings

Identification of a universal regime in coagulation with evaporation

Discovery of two non-universal regimes based on particle merger importance

Observation of a turbulence-like logarithmic correction at regime boundaries

Abstract

Irreversible aggregation is an archetypal example of a system driven far from equilibrium by sources and sinks of a conserved quantity (mass). The source is a steady input of monomers and the evaporation of colliding particles with a small probability is the sink. Using exact and heuristic analyses, we find a universal regime and two distinct non-universal regimes distinguished by the relative importance of mergers between small and large particles. At the boundary between the regimes we find an analogue of the logarithmic correction conjectured by Kraichnan for two-dimensional turbulence.