Irreversible mesoscale fluctuations herald the emergence of dynamical phases
Statistical Mechanics
2023-09-08 v3 Soft Condensed Matter
Fluid Dynamics
Abstract
We study fluctuating field models with spontaneously emerging dynamical phases. We consider two typical transition scenarios associated with parity-time symmetry breaking: oscillatory instabilities and critical exceptional points. An analytical investigation of the low-noise regime reveals a drastic increase of the mesoscopic entropy production toward the transitions. For an illustrative model of two nonreciprocally coupled Cahn-Hilliard fields, we find physical interpretations in terms of actively propelled interfaces and a coupling of modes near the critical exceptional point.
Keywords
Cite
@article{arxiv.2303.16701,
title = {Irreversible mesoscale fluctuations herald the emergence of dynamical phases},
author = {Thomas Suchanek and Klaus Kroy and Sarah A. M. Loos},
journal= {arXiv preprint arXiv:2303.16701},
year = {2023}
}
Comments
7 pages, 2 figures. Two companion articles are available at arXiv:2305.00744 and arXiv:2305.05633