Active phase separation in mixtures of chemically interacting particles

Abstract

We theoretically study mixtures of chemically-interacting particles, which produce or consume a chemical to which they are attracted or repelled, in the most general case of many coexisting species. We find a new class of active phase separation phenomena in which the nonequilibrium chemical interactions between particles, which break action-reaction symmetry, can lead to separation into phases with distinct density and stoichiometry. Due to the generic nature of our minimal model, our results shed light on the underlying fundamental principles behind nonequilibrium self-organization of cells and bacteria, catalytic enzymes, or phoretic colloids.

arXiv commentMain Text (5 pages, 3 figures) plus Supplemental Material (8 pages, 4 figures). The associated movies 1-12 can be found at http://www.ds.mpg.de/LMP/arxiv190109022

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Cited by in corpus (80)

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• Chemotactic self-caging in active emulsions
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• Hydrodynamically interrupted droplet growth in scalar active matter
• Interactions in Active Colloids
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• Self-organization of primitive metabolic cycles due to non-reciprocal interactions
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• Lamellar to micellar phases and beyond: when tactic active systems admit free-energy functionals
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• Information and motility exchange in collectives of active particles
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• Exact axisymmetric interaction of phoretically active Janus particles
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• Defect Solutions of the Non-reciprocal Cahn-Hilliard Model: Spirals and Targets
• Cooperatively enhanced reactivity and 'stabilitaxis' of dissociating oligomeric proteins
• Escaping kinetic traps using non-reciprocal interactions
• Spontaneous Demixing of Binary Colloidal Flocks
• Nonequilibrium Transport Induced by Biological Nanomachines
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• Stochastic dynamics of chemotactic colonies with logistic growth
• Diffusion and steady state distributions of flexible chemotactic enzymes
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• Rigid flocks, undulatory gaits, and chiral foldamers in a chemically active polymer
• Simple mathematical model for a pairing-induced motion of active and passive particles
• Mechanical inhibition of dissipation in a thermodynamically consistent active solid
• Binary Mixtures of Intelligent Active Brownian Particles with Visual Perception
• Self-organization of active colloids mediated by chemical interactions
• Fluctuation Dissipation Relations for the Non-Reciprocal Cahn-Hilliard Model
• Asymmetric longitudinal optical binding force between two identical dielectric particles with electric and magnetic dipolar responses
• Pattern dynamics of the nonreciprocal Swift-Hohenberg model
• Demixing of two species via reciprocally concentration-dependent diffusivity
• Swarm Systems as a Platform for Open-Ended Evolutionary Dynamics
• Continuous-time multifarious systems -- Part II: non-reciprocal multifarious self-organization
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• Stochastic Thermodynamics of Non-reciprocally Interacting Particles and Fields
• Non-reciprocal mixtures in suspension: the role of hydrodynamic interactions
• Non-equilibrium structure and relaxation in active microemulsions
• A Hitchhiker's Guide To Active Motion
• Non-reciprocal interactions between condensates in chemically active mixtures
• State Diagram of the Non-Reciprocal Cahn-Hilliard Model and the Effects of Symmetry
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• Optimizing Energetic cost of Uncertainty in a Driven System With and Without Feedback
• Catalysis-Induced Phase Separation and Autoregulation of Enzymatic Activity
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