Effective Interactions in Active Brownian Suspensions

Abstract

Active colloids exhibit persistent motion, which can lead to motility-induced phase separation (MIPS). However, there currently exists no microscopic theory to account for this phenomenon. We report a first-principles theory, free of fit parameters, for active spherical colloids, which shows explicitly how an effective many-body interaction potential is generated by activity and how this can rationalize MIPS. For a passively repulsive system the theory predicts phase separation and pair correlations in quantitative agreement with simulation. For an attractive system the theory shows that phase separation becomes suppressed by moderate activity, consistent with recent experiments and simulations, and suggests a mechanism for reentrant cluster formation at high activity.

10 pages, 3 figures

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Cited by in corpus (180)

• Active Particles in Complex and Crowded Environments
• How far from equilibrium is active matter?
• Emergent behavior in active colloids
• Statistical Mechanics of Active Ornstein Uhlenbeck Particles
• The statistical physics of active matter: from self-catalytic colloids to living cells
• Classical dynamical density functional theory: from fundamentals to applications
• Spontaneous velocity alignment in Motility-induced Phase Separation
• Irreversibility in active matter systems: Fluctuation theorem and mutual information
• Generalized Thermodynamics of Phase Equilibria in Scalar Active Matter
• Entropy production in field theories without time reversal symmetry: Quantifying the non-equilibrium character of active matter
• Cluster phases and bubbly phase separation in active fluids: Reversal of the Ostwald process
• Minimal model of active colloids highlights the role of mechanical interactions in controlling the emergent behavior of active matter
• Generalized thermodynamics of Motility-Induced Phase Separation: Phase equilibria, Laplace pressure, and change of ensembles
• Entropy production and fluctuation theorems for active matter
• Virial pressure in systems of active Brownian particles
• Hidden entropy production and work fluctuations in an ideal active gas
• Perspective: Nonequilibrium glassy dynamics in dense systems of active particles
• Towards a statistical mechanical theory of active fluids
• Time-(ir)reversibility in active matter: from micro to macro
• Glassy dynamics of athermal self-propelled particles: Computer simulations and a nonequilibrium microscopic theory
• Stochastic thermodynamics for active matter
• The nonequilibrium glassy dynamics of self-propelled particles
• Jamming and Attraction of Interacting Run-and-Tumble Random Walkers
• The Entropy Production of Ornstein-Uhlenbeck Active Particles: a path integral method for correlations
• Phase Diagram of Active Brownian Spheres: Crystallization and the Metastability of Motility-Induced Phase Separation
• Autonomous engines driven by active matter: Energetics and design principles
• Ideal bulk pressure of active Brownian particles
• How active forces influence nonequilibrium glass transitions
• Active fluidization in dense glassy systems
• Active escape dynamics: the effect of persistence on barrier crossing
• Generic long-range interactions between passive bodies in an active fluid
• Heat, temperature and Clausius inequality in a model for active brownian particles
• Mode-Coupling Theory for Active Brownian Particles
• Chemical potential in active systems: predicting phase equilibrium from bulk equations of state?
• A theory for the dynamics of dense systems of athermal self-propelled particles
• Active Brownian Heat Engines
• Power functional theory for many-body dynamics
• Escape rate of active particles in the effective equilibrium approach
• From single-particle to collective effective temperatures in an active fluid of self-propelled particles
• Uncertainty relations for underdamped Langevin dynamics
• Flocking without alignment interactions in attractive active Brownian particles
• Capillary interfacial tension in active phase separation
• Fluctuating motion in an active environment
• Active Ornstein-Uhlenbeck model for self-propelled particles with inertia
• Phase separation and multibody effects in three-dimensional active Brownian particles
• Applicability of Effective Pair Potentials for Active Brownian Particles
• Mean first passage time of active Brownian particle in one dimension
• Effective equilibrium states in the colored-noise model for active matter I. Pairwise forces in the Fox and unified colored noise approximations
• Clausius relation for active particles: what can we learn from fluctuations?
• Linear response theory and Green-Kubo relations for active matter
• Non-Equilibrium Surface Tension of the Vapour-Liquid Interface of Active Lennard-Jones Particles
• Noether's Theorem in Statistical Mechanics
• How dissipation constrains fluctuations in nonequilibrium liquids: Diffusion, structure and biased interactions
• Non-negative Interfacial Tension in Phase-Separated Active Brownian Particles
• The Parental Active Model: a unifying stochastic description of self-propulsion
• Active Brownian particles at interfaces: An effective equilibrium approach
• Phase coexistence of active Brownian particles
• Linear response and correlation of a self-propelled particle in the presence of external fields
• Generalized Ornstein-Uhlenbeck Model for Active Motion
• Dissipation controls transport and phase transitions in active fluids: Mobility, diffusion and biased ensembles
• Collective forces in scalar active matter
• From bulk to microphase separation in scalar active matter: A perturbative renormalization group analysis
• Nonlocal stationary probability distributions and escape rates for an active Ornstein-Uhlenbeck particle
• Effect of self-propulsion on equilibrium clustering
• Role of rotational inertia for collective phenomena in active matter
• Active phase separation: new phenomenology from non-equilibrium physics
• Classical Nucleation Theory for Active Fluid Phase Separation
• A comparative study between two models of active cluster-crystals
• Active dumbbells: dynamics and morphology in the coexisting region
• Evaluating linear response in active systems with no perturbing field
• Thermodynamics of emergent structure in active matter
• Active matter: quantifying the departure from equilibrium
• Extracting maximum power from active colloidal heat engines
• Dynamics of active particles with space-dependent swim velocity
• How irreversible are steady-state trajectories of a trapped active particle?
• Dynamics of active particles with translational and rotational inertia
• Critical Phenomena in Active Matter
• Brownian heat engine with active reservoirs
• Effective equilibrium states in the colored-noise model for active matter II. A unified framework for phase equilibria, structure and mechanical properties
• The entropy production of an active particle in a box
• Critical active dynamics is captured by a colored-noise driven field theory
• Chiral active matter in external potentials
• Why Noether's Theorem applies to Statistical Mechanics
• Effective equilibrium states in mixtures of active particles driven by colored noise
• Vapour-Liquid Coexistence of an Active Lennard-Jones fluid
• Lorentz forces induce inhomogeneity and fluxes in active systems
• Effective potential method for active particles
• Irreversibility in active matter: General framework for active Ornstein-Uhlenbeck particles
• Pressure in an exactly solvable model of active fluid
• Nonequilibrium phase behaviour from minimization of free power dissipation
• Microscopic derivation of the hydrodynamics of active-Brownian-particle suspensions
• Thermodynamics and statistical mechanics of chemically-powered synthetic nanomotors
• Mode-coupling theory for the steady-state dynamics of active Brownian particles
• Collective effects in confined Active Brownian Particles
• Van't Hoff's law for active suspensions: the role of the solvent chemical potential
• Pressure, surface tension and curvature in active systems: A touch of equilibrium
• Approach to equilibrium and non-equilibrium stationary distributions of interacting many-particle systems that are coupled to different heat baths
• Pair-distribution function of active Brownian spheres in two spatial dimensions: simulation results and analytic representation
• Non-Gaussian noise without memory in active matter
• Adaptive Brownian Dynamics
• Lane formation in a driven attractive fluid
• Cage Length Controls the Non-Monotonic Dynamics of Active Glassy Matter
• Force density functional theory in- and out-of-equilibrium
• Pseudochemotaxis in inhomogeneous active Brownian systems
• Anomalous fluxes in overdamped Brownian dynamics with Lorentz force
• Morphological transitions of active Brownian particle aggregates on porous walls
• Run-and-tumble motion in a linear ratchet potential: Analytic solution, power extraction, and first-passage properties
• Tuning Nonequilibrium Phase Transitions with Inertia
• Capillary action in scalar active matter
• Nondiffusive Fluxes in Brownian System with Lorentz Force
• Influence of interaction softness in phase separation of active particles
• Activity-assisted self-assembly of colloidal particles
• Hydrodynamic interactions dominate the structure of active swimmers' pair distribution functions
• Self-propelled particle in a nonconvex external potential: Persistent limit in one dimension
• Pair correlation of dilute Active Brownian Particles: from low activity dipolar correction to high activity algebraic depletion wings
• Perspective: New directions in dynamical density functional theory
• Signatures of irreversibility in microscopic models of flocking
• Isotropic-nematic transition of self-propelled rods in three dimensions
• Phase separation of active Brownian particles in two dimensions: Anything for a quiet life
• Static Structure of Active Brownian Hard Disks
• Generalized Fluctuation-Dissipation relations holding in non-equilibrium dynamics
• Active interface polarization is a state function
• Active Glassy Dynamics is Unaffected by the Microscopic Details of Self-Propulsion
• Three-body correlations and conditional forces in suspensions of active hard disks
• Anomalous fluctuations in homogeneous fluid phase of active Brownian particles
• Two-dimensional active motion
• How to define temperature in active systems?
• Aggregate morphology of active Brownian particles on porous, circular walls
• Motility induced phase separation of deformable cells
• Effects of the non-Markovianity and non-Gaussianity of active environmental noises on engine performance
• Aggregation and sedimentation of active Brownian particles at constant affinity
• Fluctuation Spectra and Force Generation in Non-equilibrium Systems
• Effective Entropy Production and Thermodynamic Uncertainty Relation of Active Brownian Particles
• Theoretical approaches to the steady-state statistical physics of interacting dissipative units
• Escape rate of transiently active Brownian particle in one dimension
• Active Colloidal Molecules in Activity Gradients
• Statistical properties of microphase and bubbly phase-separated active fluids
• Microscopic field theory for structure formation in systems of self-propelled particles with generic torques
• Statistical Field Theory and Effective Action Method for scalar Active Matter
• Three-body problem for Langevin dynamics with different temperatures
• Kinetic Monte-Carlo Algorithms for Active-Matter systems
• The most probable path of Active Ornstein-Uhlenbeck particles
• Mode-coupling theory for mixtures of athermal self-propelled particles
• Dynamics and steady states of a tracer particle in a confined critical fluid
• Configurational temperature in active matter. I. Lines of invariant physics in the phase diagram of the Ornstein-Uhlenbeck model
• Ratchet-induced variations in bulk states of an active ideal gas
• The Influence of Particle Softness on Active Glassy Dynamics
• From a microscopic solution to a continuum description of active particles with a recoil interaction in one dimension
• Statistical Mechanics and Hydrodynamics of Self-Propelled Hard Spheres
• Anisotropic run-and-tumble-turn dynamics
• Inhomogeneous entropy production in active crystals with point imperfections
• Towards a liquid-state theory for active matter
• The Many Faces of Fluctuation-Dissipation Relations Out of Equilibrium
• Tagged active particle: probability distribution in a slowly varying external potential is determined by effective temperature obtained from the Einstein relation
• Designing circle Swimmers: Principles and strategies
• Re-entrant percolation in active Brownian hard disks
• Dynamic properties of quasi-confined colloidal hard-sphere liquids near the glass transition
• An equation of state for active matter
• Self-propulsion and self-navigation: Activity is a precursor to jamming
• Singular density correlations in chiral active fluids in three dimensions
• Velocity Distribution and Diffusion of an Athermal Inertial Run-and-Tumble Particle in a Shear-Thinning Medium
• Confined active particles with spatially dependent Lorentz force: an odd twist to the "best Fokker-Planck approximation"
• Thermodynamic nature of irreversibility in active matter
• Active-parameter polydispersity in the 2d ABP Yukawa model
• Emergent short-range repulsion for attractively coupled active particles
• Active-matter isomorphs in the size-polydisperse Ornstein-Uhlenbeck Lennard-Jones model
• Most probable paths for active Ornstein-Uhlenbeck particles
• Tagged-particle motion in quasi-confined colloidal hard-sphere liquids
• Escape rate of an active Brownian particle in a rough potential
• Effective interactions in active Brownian particles
• Active responsive colloids driven by intrinsic dichotomous noise
• Correlated escape of active particles across a potential barrier
• Entropy production in active Rouse polymers
• From Attraction to Repulsion: Emergent Interactions in Harmonically Coupled Active Binary System
• Semi-Markovian switching in a fluctuating harmonic trap: An age-structured formulation
• Beyond the Markovian limit: Exact solutions for active motion in a power-law viscoelastic bath
• Active chiral molecules in activity gradients
• Hydrodynamics of simple active liquids: the emergence of velocity correlations
• How non-equilibrium correlations in active matter reveal the topological crossover in glasses
• Configurational Entropy of Self Propelled Glass Formers