Active Particles Bound by Information Flows

Abstract

Self-organization is the generation of order out of local interactions in non-equilibrium [1]. It is deeply connected to all fields of science from physics, chemistry to biology where functional living structures self-assemble[2] and constantly evolve[3] all based on physical interactions. The emergence of collective animal behavior[4], of society or language are the results of self-organization processes as well though they involve abstract interactions arising from sensory inputs, information processing, storage and feedback[5-7]. Resulting collective behaviors are found for example in crowds of people, flocks of birds, schools of fish or swarms of bacteria[8,9]. Here we introduce such information based interactions to the behavior of active microparticles. A real time feedback of active particle positions controls the propulsion direction these active particles. The emerging structures are bound by dissipation and reveal frustrated geometries due to confinement to two dimensions. They diffuse like passive clusters of colloids, but possess internal dynamical degrees of freedom that are determined by the feed- back and the noise in the system. As the information processing in the feedback loops can be designed almost arbitrarily, new perspectives for self-organization studies involving coupled feedback systems with separate timescales, machine learning and swarm intelligence arise.

arXiv comment13 pages, 4 figures

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Cited by in corpus (50)

• The 2019 Motile Active Matter Roadmap
• Computational models for active matter
• Irreversibility, heat and information flows induced by non-reciprocal interactions
• Hydrodynamic Manipulation of Nano-Objects by Thermo-Osmotic Flows
• Feedback-Controlled Active Brownian Colloids with Space-Dependent Rotational Dynamics
• Optimal steering of a smart active particle
• Active Brownian Heat Engines
• Self-organized lasers of reconfigurable colloidal assemblies
• Reconfigurable Artificial Microswimmers with Internal Feedback
• Perspectives on adaptive dynamical systems
• Anomalous Topological Active Matter
• Noether's Theorem in Statistical Mechanics
• The Parental Active Model: a unifying stochastic description of self-propulsion
• Phototactic Robot Tunable by Sensorial Delays
• Heat flow due to time-delayed feedback
• Light, Matter, Action: Shining light on active matter
• Spontaneous vortex formation by microswimmers with retarded attractions
• Reinforcement learning of optimal active particle navigation
• Finite-size scaling at the edge of disorder in a time-delay Vicsek model
• Quorum-sensing active particles with discontinuous motility
• The 2024 Motile Active Matter Roadmap
• Optimal active particle navigation meets machine learning
• Thermodynamics and optimal protocols of multidimensional quadratic Brownian systems
• Fractal aggregation of active particles
• Jerky active matter: a phase field crystal model with translational and orientational memory
• Traveling band formation in feedback-driven colloids
• Brownian Molecules Formed by Delayed Harmonic Interactions
• Phase separation of active Brownian particles in two dimensions: Anything for a quiet life
• Optimal navigation strategies for microswimmers on curved manifolds
• Efficient control protocols for an active Ornstein-Uhlenbeck particle
• Fokker-Planck equations for time-delayed systems via Markovian Embedding
• Environmental Memory Boosts Group Formation of Clueless Individuals
• Hunting active Brownian particles: Learning optimal behavior
• Reinforcement Learning of Artificial Microswimmers
• Time scales of inertial motion in the collective dynamics of underdamped active phase field crystal systems
• Signal propagation and linear response in the delay Vicsek model
• Swirling due to misaligned perception-dependent motility
• Active particles with delayed attractions form quaking crystallites
• Overload wave-memory induces amnesia of a self-propelled particle
• Equilibrium Stochastic Delay Processes
• An atomic bright vector soliton as an active particle
• Heat production in a stochastic system with nonlinear time-delayed feedback
• Inverted Sedimentation of Active Particles in Unbiased ac Fields
• Anomalous Dynamics of Superparamagnetic Colloidal Microrobots with Tailored Statistics
• Superexponential Interactions and the Dynamical Unfolding of Confined Degrees of Freedom
• Unravelling the Flow of Information in a Nonequilibrium Process in the Presence of Hydrodynamic Interactions
• Memory effects, arches and polar defect ordering at the cross-over from wet to dry active nematics
• Effective interactions in active Brownian particles
• Defining and finding lifelike entities with a lazy filter
• Delayed Active Swimmer in a Velocity Landscape