Active matter

Abstract

The study of systems with sustained energy uptake and dissipation at the scale of the constituent particles is an area of central interest in nonequilibrium statistical physics. Identifying such systems as a distinct category -- Active Matter -- unifies our understanding of autonomous collective move- ment in the living world and in some surprising inanimate imitations. In this article I present the Active Matter framework, briefly recall some early work, review our recent results on single-particle and collective behaviour, including experiments on active granular monolayers, and discuss new directions for the future.

to appear in the STATPHYS26 Special Issue of JSTAT

References in corpus (52)

• Active Particles in Complex and Crowded Environments
• Collective motion
• The Mechanics and Statistics of Active Matter
• Flocks, herds, and schools: A quantitative theory of flocking
• Spontaneous motion in hierarchically assembled active matter
• Active Brownian Particles. From Individual to Collective Stochastic Dynamics
• Emergence of macroscopic directed motion in populations of motile colloids
• Meso-scale turbulence in living fluids
• Hydrodynamic fluctuations and instabilities in ordered suspensions of self-propelled particles
• Onset of collective and cohesive motion
• Long-lived Giant Number Fluctuations in a Swarming Granular Nematic
• Propulsion of a molecular machine by asymmetric distribution of reaction--products
• How far from equilibrium is active matter?
• Topology and Dynamics of Active Nematic Vesicles
• Collective Motion of Vibrated Polar Disks
• Rheology of Active-Particle Suspensions
• Pressure is not a state function for generic active fluids
• Confinement Stabilizes a Bacterial Suspension into a Spiral Vortex
• Turning bacteria suspensions into a "superfluid"
• Spontaneous flow transition in active polar gels
• Defect annihilation and proliferation in active nematics
• Active nematics on a substrate: giant number fluctuations and long-time tails
• Effective viscosity of microswimmer suspensions
• Flocking at a distance in active granular matter
• Clusters, asters and collective oscillations in chemotactic colloids
• Nonequilibrium Fluctuations, Travelling Waves, and Instabilities in Active Membranes
• Velocity Correlations in an Active Nematic
• Entropy production in field theories without time reversal symmetry: Quantifying the non-equilibrium character of active matter
• Nonequilibrium quantum criticality in open electronic systems
• Non-Newtonian viscosity of E-coli suspensions
• Active Membrane Fluctuations Studied by Micropipet Aspiration
• Nonequilibrium steady states in a vibrated-rod monolayer: tetratic, nematic and smectic correlations
• Long-range nematic order and anomalous fluctuations in suspensions of swimming filamentous bacteria
• Long-range Ordering of Vibrated Polar Disks
• Stochastic thermodynamics for active matter
• Mesoscopic theory for fluctuating active nematics
• Large-scale chaos and fluctuations in active nematics
• Rheology of Active Filament Solutions
• Dynamics of defects in active nematics
• Birth, Death and Flight: A Theory of Malthusian Flocks
• Symmetry properties of the large-deviation function of the velocity of a self-propelled polar particle
• Activating membranes
• Transition to zero resistance in a two dimensional electron gas driven with microwaves
• Mimicking Nonequilibrium Steady States with Stochastic Pumps
• Silent Flocks
• Active Viscoelastic Matter: from Bacterial Drag Reduction to Turbulent Solids
• Live Soap: Order, Fluctuations and Instabilities in Active Smectics
• Hydrodynamic instabilities in active cholesteric liquid crystals
• Anisotropic Isometric Fluctuation Relations in experiment and theory on a self-propelled rod
• Hydrodynamics of Turning Flocks
• Aspects of the density field in an active nematic
• Nonequilibrium-induced metal-superconductor quantum phase transition in graphene

Cited by in corpus (173)

• Topological active matter
• Classical dynamical density functional theory: from fundamentals to applications
• Steady state, relaxation and first-passage properties of a run-and-tumble particle in one-dimension
• Irreversibility in active matter systems: Fluctuation theorem and mutual information
• Cluster phases and bubbly phase separation in active fluids: Reversal of the Ostwald process
• Hidden entropy production and work fluctuations in an ideal active gas
• Entropy production of active particles and for particles in active baths
• Active Brownian Motion in Two Dimensions
• Irreversibility, heat and information flows induced by non-reciprocal interactions
• Universal survival probability for a $d$-dimensional run-and-tumble particle
• Run-and-tumble particles in two-dimensions : Marginal position distributions
• Lattice Boltzmann Methods and Active Fluids
• Quantifying hidden order out of equilibrium
• A First-Order Dynamical Transition in the displacement distribution of a Driven Run-and-Tumble Particle
• Exact stationary state of a run-and-tumble particle with three internal states in a harmonic trap
• Long time position distribution of an active Brownian particle in two dimensions
• Run-and-Tumble particles in Two-dimensions under Stochastic Resetting
• Origins and diagnostics of the nonequilibrium character of active systems
• Clustering and flocking of repulsive chiral active particles with non-reciprocal couplings
• Active Brownian Motion in two-dimensions under Stochastic Resetting
• Feedback mechanisms for self-organization to the edge of a phase transition
• Capillary interfacial tension in active phase separation
• Fluctuating motion in an active environment
• Active Ornstein-Uhlenbeck model for self-propelled particles with inertia
• Quantitative Assessment of the Toner and Tu Theory of Polar Flocks
• A review of active matter reviews
• The convex hull of the run-and-tumble particle in a plane
• Active Brownian Motion with Directional Reversals
• Time-dependent inertia of self-propelled particles: the Langevin rocket
• Anomalous diffusion and Lévy walks distinguish active from inertial turbulence
• Design of nematic liquid crystals to control microscale dynamics
• Programming Active Cohesive Granular Matter with Mechanically Induced Phase Changes
• Condensation transition in the late-time position of a Run-and-Tumble particle
• From bulk to microphase separation in scalar active matter: A perturbative renormalization group analysis
• Pattern-induced local symmetry breaking in active matter systems
• Intrinsically motivated collective motion
• Stochastic thermodynamics for self-propelled particles
• Thermodynamics of active field theories: Energetic cost of coupling to reservoirs
• Stealth entropy production in active field theories near Ising critical points
• Geometry and mechanics of disclination lines in 3D nematic liquid crystals
• Dynamics and escape of active particles in a harmonic trap
• Oriented Active Solids
• Classical Nucleation Theory for Active Fluid Phase Separation
• Light, Matter, Action: Shining light on active matter
• Thermodynamics of emergent structure in active matter
• Theory of defect motion in 2D passive and active nematic liquid crystals
• Active cholesterics: odder than odd elasticity
• Characterization of MIPS in a suspension of repulsive Active Brownian Particles through dynamical features
• How irreversible are steady-state trajectories of a trapped active particle?
• Spontaneous rotation can stabilise ordered chiral active fluids
• Exact fluctuating hydrodynamics of active lattice gases -- Typical fluctuations
• Intermittency, fluctuations and maximal chaos in an emergent universal state of active turbulence
• Direction reversing active Brownian particle in a harmonic potential
• Chiral active hexatics: Giant number fluctuations, waves and destruction of order
• Stochastic Hydrodynamics of Complex Fluids: Discretisation and Entropy Production
• Exact position distribution of a harmonically-confined run-and-tumble particle in two dimensions
• Hard core run and tumble particles on a one dimensional lattice
• Mean area of the convex hull of a run and tumble particle in two dimensions
• Molecular-scale substrate anisotropy and crowding drive long-range nematic order of cell monolayers
• Reconfiguration, swelling and tagged monomer dynamics of a single polymer chain in Gaussian and non-Gaussian active baths
• Dynamics of active nematic defects on the surface of a sphere
• Cage Length Controls the Non-Monotonic Dynamics of Active Glassy Matter
• Singularity identification for the characterization of topology, geometry, and motion of nematic disclination lines
• Active extensile stress promotes 3D director orientations and flows
• Designing, Synthesizing and Modeling Active Fluids
• Propagation of active nematic-isotropic interfaces on substrates
• Run-and-Tumble particle in inhomogeneous media in one dimension
• Bodies in an Interacting Active Fluid: Far-Field Influence of a Single Body and Interaction Between Two Bodies
• Active Brownian Particles in Random and Porous Environments
• Active matter, microreversibility, and thermodynamics
• Heat fluctuations in a harmonic chain of active particles
• Stationary nonequilibrium bound state of a pair of run and tumble particles
• Single particle motion and collective dynamics in Janus motor systems
• Flocking and reorientation transition in the 4-state active Potts model
• Active nematic-isotropic interfaces in channels
• Gap statistics of two interacting run and tumble particles in one dimension
• Fluctuations of entropy production of a run-and-tumble particle
• Morphodynamics of Active Nematic Fluid Surfaces
• Flocking with a $q$-fold discrete symmetry: band-to-lane transition in the active Potts model
• Efficient control protocols for an active Ornstein-Uhlenbeck particle
• A mechanism for anomalous transport in chiral active liquids
• Competing Active and Passive Interactions Drive Amoeba-like Living Crystallites and Ordered Bands
• Designing open quantum systems with known steady states: Davies generators and beyond
• Bacterial activity hinders particle sedimentation
• Rheological similarities between dense self-propelled and sheared particulate systems
• Reaction processes among self-propelled particles
• Thermodynamically consistent model of an active Ornstein-Uhlenbeck particle
• Interacting, running and tumbling: the active Dyson Brownian motion
• Spontaneous rotation of active droplets in two and three dimensions
• Steady states of active Brownian particles interacting with boundaries
• Optimal mean first-passage time of a run-and-tumble particle in a class of one-dimensional confining potentials
• Inertial active Ornstein-Uhlenbeck particle in the presence of magnetic field
• Nonequilibrium steady state of trapped active particles
• Statistical properties of microphase and bubbly phase-separated active fluids
• Relating absorbing and hard wall boundary conditions for a one-dimensional run-and-tumble particle
• Self-generated gradients stabilize the hydrodynamic instabilities in active suspensions
• Lagrangian Manifestation of Anomalies in Active Turbulence
• Run-and-tumble particle in one-dimensional potentials: mean first-passage time and applications
• Emergent complex phases in a discrete flocking model with reciprocal and non-reciprocal interactions
• Stochastic resetting and first arrival subjected to Gaussian noise and Poisson white noise
• Enhanced orientational ordering induced by active yet isotropic bath
• Minimal stochastic field equations for one-dimensional flocking
• Data-driven model construction for anisotropic dynamics of active matter
• Configurational temperature in active matter. I. Lines of invariant physics in the phase diagram of the Ornstein-Uhlenbeck model
• Collective Vortical Motion and Vorticity Reversals of Self-Propelled Particles on Circularly Patterned Substrates
• Dynamical anomalies and structural features of Active Brownian Particles characterised by two repulsive length scales
• Self-propulsion with speed and orientation fluctuation: exact computation of moments and dynamical bistabilities in displacement
• Stability of the interface of an isotropic active fluid
• Periodic Orbits of Active Particles induced by Hydrodynamic Monopoles
• Active particles with delayed attractions form quaking crystallites
• Confined run and tumble particles with non-Markovian tumbling statistics
• Dead or alive: Distinguishing active from passive particles using supervised learning
• Light and heavy particles on a fluctuating surface: Bunchwise balance, irreducible sequences and local density-height correlations
• High-energy velocity tails in uniformly heated granular materials
• Magnetized granular particles running and tumbling on $S^1$
• Configurational temperature in active matter. II. Quantifying the deviation from thermal equilibrium
• The Influence of Particle Softness on Active Glassy Dynamics
• Pushing run-and-tumble particles through a rugged channel
• Single active particle engine utilizing a non-reciprocal coupling between particle's position and self-propulsion
• Effects of the self-propulsion parity on the efficiency of a fuel-consuming active heat engine
• Machine learning phases of active matter
• Onset of Intermittency and Multiscaling in Active Turbulence
• Active uniaxially ordered suspensions on disordered substrates
• Drift induced by dissipation
• Data-driven discovery of stochastic dynamical equations of collective motion
• Active particle in a harmonic trap driven by a resetting noise: an approach via Kesten variables
• Unified Linear Fluctuation-Response Theory Arbitrarily Far from Equilibrium
• Tagged active particle: probability distribution in a slowly varying external potential is determined by effective temperature obtained from the Einstein relation
• Transport of molecules via polymerization in chemical gradients
• Long-wavelength instabilities in a system of interacting active particles
• Chirality and odd mechanics in active columnar phases
• Tangentially Active Polymers in Cylindrical Channels
• Detecting and characterizing phase transitions in active matter using entropy
• Quantum-like behavior of an active particle in a double-well potential
• Inducing a bound state between active particles
• Statistical physics of active matter, cell division and cell aggregation
• Active Transport of Cargo-Carrying and Interconnected Chiral Particles
• Diffusion coefficient and power spectrum of active particles with a microscopically reversible mechanism of self-propelling
• Front speed and pattern selection of a propagating chemical front in an active fluid
• Active velocity processes with suprathermal stationary distributions and long-time tails
• Heat-to-motion conversion for quantum active matter
• Single active particle in a harmonic potential: non-existence of the Jarzynski relation
• Aligning Active Particles Py Package
• Chirality Reversing Active Brownian Motion in Two Dimensions
• Tunable Memory and Activity of Quincke Particles in Micellar Fluid
• Local control for the collective dynamics of self-propelled particles
• Ambitions for theory in the physics of life
• Siegmund duality for physicists: a bridge between spatial and first-passage properties of continuous and discrete time stochastic processes
• Hydrodynamics of a hard-core active lattice gas
• Active Brownian particle under stochastic position and orientation resetting in a harmonic trap
• Active-parameter polydispersity in the 2d ABP Yukawa model
• Coupling an elastic string to an active bath: the emergence of inverse damping
• Swarm Systems as a Platform for Open-Ended Evolutionary Dynamics
• Active-matter isomorphs in the size-polydisperse Ornstein-Uhlenbeck Lennard-Jones model
• Mobility-induced phase separation in a binary mixture of active Brownian particles
• Pair correlation function based on Voronoi topology
• Coupled Interfacial Phenomena Suppress Propulsion in Catalytic Janus Colloids
• Long time behavior of run-and-tumble particles in two dimensions
• Demonstration of the rotational viscosity transfer across scales in Navier-Stokes turbulence
• Nonlinear Response Relations and Fluctuation-Response Inequalities for Nonequilibrium Stochastic Systems
• Active control of transport through nanopores
• Algebraic correlations and anomalous fluctuations in ordered flocks of Janus particles fueled by an AC electric field
• Phase separation of chemokinetic active particles
• Curvature dependent dynamics of a bacterium confined in a giant unilamellar vesicle
• Crystal to liquid cross-over for active particles with inverse-square power-law interaction
• Inertia-chirality interplay in active Brownian motion: exact dynamics and phase maps
• Persistent exclusion process with time-periodic drive
• Universal framework for the long-time position distribution of free active particles
• Riding the Wave: Polymers in Time-dependent Nonequilibrium Baths
• A Rayleigh criterion for mechanical instability: inducing activity by chemo-mechanical coupling
• Suppression of discontinuous phase transitions by particle diffusion
• Defining and finding lifelike entities with a lazy filter
• Run-and-tumble particle with saturating rates