Irreversible mesoscale fluctuations herald the emergence of dynamical phases

2023/03/29 by Suchanek, Thomas, Kroy, Klaus, Loos, Sarah A. M. · 4 citations
#FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Soft Condensed Matter (cond-mat.soft) #Statistical Mechanics (cond-mat.stat-mech)

paper · doi:10.48550/arxiv.2303.16701

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.

Cited by

• Nonlinear magnetization dynamics as a route to nonreciprocal phases, spin superfluidity, and analogue gravity
• Demon's variational principle for informational active matter
• Stochastic Forces Enhance Tracer Diffusion in Non-motile Active Matter
• Entropy production in non-reciprocal polar active mixtures

Related

• Time-reversal and PT symmetry breaking in non-Hermitian field theories
• Entropy production in the nonreciprocal Cahn-Hilliard model
• Irreversibility across a nonreciprocal \cal PT-symmetry-breaking phase transition
• Non-Stationary Critical Phenomena: Expanding The Critical Point
• Noise-Induced Phase Separation and Time Reversal Symmetry Breaking in Active Field Theories driven by persistent noise