Interacting Brownian dynamics in a nonequilibrium particle bath

Abstract

We set up a mesoscopic theory for interacting Brownian particles embedded in a nonequilibrium environment, starting from the microscopic interacting many-body theory. Using nonequilibrium linear response theory, we characterize the effective dynamical interactions on the mesoscopic scale and the statistics of the nonequilibrium environmental noise, arising upon integrating out the fast degrees of freedom. As hallmarks of nonequilibrium, the breakdown of the fluctuation-dissipation and action-reaction relations for Brownian degrees of freedom are exemplified with two prototypical models for the environment, namely, active Brownian particles and stirred colloids.

9 pages, 4 figures

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Cited by in corpus (32)

• Entropy production of active particles and for particles in active baths
• Active Brownian Heat Engines
• On the "generalized Generalized Langevin Equation"
• Dissipation controls transport and phase transitions in active fluids: Mobility, diffusion and biased ensembles
• Exact spectral solution of two interacting run-and-tumble particles on a ring lattice
• A comparative study between two models of active cluster-crystals
• Active-Particle Polarization Without Alignment Forces
• Macroscopic Stochastic Thermodynamics
• Extracting maximum power from active colloidal heat engines
• On the Einstein relation between mobility and diffusion coefficient in an active bath
• Negative differential response in chemical reactions
• Microscopic derivation of the hydrodynamics of active-Brownian-particle suspensions
• Confluent and non-confluent phases in a model of cell tissue
• Inclusions, Boundaries and Disorder in Scalar Active Matter
• Driven probe under harmonic confinement in a colloidal bath
• A Brownian cyclic engine operating in a viscoelastic active suspension
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• Non-Gaussian anomalous dynamics in systems of interacting run-and-tumble particles
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• Dynamical fluctuations of a tracer coupled to active and passive particles
• Force renormalization for probes immersed in an active bath
• The fluctuation-dissipation relation holds for a macroscopic tracer in an active bath
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• Violation of the second fluctuation-dissipation relation and entropy production in nonequilibrium medium
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• Active Ornstein-Uhlenbeck Model for Bacterial Heat Engines
• Universal break law for chains of Brownian particles with nearest neighbour interaction
• Coarse Graining Nonisothermal Microswimmer Suspensions
• Thermotaxis of Janus Particles
• Delayed Active Swimmer in a Velocity Landscape
• Minimal dissipation with viscoelastic baths in weakly driven processes