Effective equilibrium states in the colored-noise model for active matter II. A unified framework for phase equilibria, structure and mechanical properties
arXiv:1702.00337 · doi:10.1088/1742-5468/aa8c37
Abstract
Active particles driven by colored noise can be approximately mapped onto a system that obeys detailed balance. The effective interactions which can be derived for such a system allow to describe the structure and phase behavior of the active fluid by means of an effective free energy. In this paper we explain why the related thermodynamic results for pressure and interfacial tension do not represent the results one would measure mechanically. We derive a dynamical density functional theory, which in the steady state simultaneously validates the use of effective interactions and provides access to mechanical quantities. Our calculations suggest that in the colored-noise model the mechanical pressure in coexisting phases might be unequal and the interfacial tension can become negative.
References in corpus (14)
- Motility-Induced Phase Separation
- Statistical Mechanics of Interacting Run-and-Tumble Bacteria
- How far from equilibrium is active matter?
- Pressure and Phase Equilibria in Interacting Active Brownian Spheres
- A self-propelled particle in an external potential: is there an effective temperature?
- Effective Interactions in Active Brownian Suspensions
- Towards a 'Thermodynamics' of Active Matter
- Multidimensional Stationary Probability Distribution for Interacting Active Particles
- Dynamical mean-field theory and weakly non-linear analysis for the phase separation of active Brownian particles
- Stochastic thermodynamics for active matter
- Escape rate of active particles in the effective equilibrium approach
- Applicability of Effective Pair Potentials for Active Brownian Particles
- Active Brownian particles at interfaces: An effective equilibrium approach
- Effective potential method for active particles
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- Statistical Mechanics of Active Ornstein Uhlenbeck Particles
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- Non-reciprocity across scales in active mixtures
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- Phase separation and multibody effects in three-dimensional active Brownian particles
- Active Ornstein-Uhlenbeck model for self-propelled particles with inertia
- Universality class of the motility-induced critical point in large scale off-lattice simulations of active particles
- Non-negative Interfacial Tension in Phase-Separated Active Brownian Particles
- How dissipation constrains fluctuations in nonequilibrium liquids: Diffusion, structure and biased interactions
- Dissipation controls transport and phase transitions in active fluids: Mobility, diffusion and biased ensembles
- Role of rotational inertia for collective phenomena in active matter
- Active phase separation: new phenomenology from non-equilibrium physics
- Lamellar to micellar phases and beyond: when tactic active systems admit free-energy functionals
- How irreversible are steady-state trajectories of a trapped active particle?
- Effective equilibrium states in mixtures of active particles driven by colored noise
- Critical active dynamics is captured by a colored-noise driven field theory
- Pressure, surface tension and curvature in active systems: A touch of equilibrium
- Non-Gaussian noise without memory in active matter
- Inclusions, Boundaries and Disorder in Scalar Active Matter
- Tuning Nonequilibrium Phase Transitions with Inertia
- Correlations in multithermostat Brownian systems with Lorentz force
- Self-propelled particle in a nonconvex external potential: Persistent limit in one dimension
- Derivation and analysis of a phase field crystal model for a mixture of active and passive particles
- Fluctuating hydrodynamics of active particles interacting via taxis and quorum sensing: static and dynamics
- From predicting to learning dissipation from pair correlations of active liquids
- Mean-field theory for the structure of strongly interacting active liquids
- Confined active particles with spatially dependent Lorentz force: an odd twist to the "best Fokker-Planck approximation"