Kinetic temperature and pressure of an active Tonks gas
arXiv:2304.13858 · doi:10.1103/PhysRevE.108.064601
Abstract
Using computer simulation and analytical theory, we study an active analog of the well-known Tonks gas, where active Brownian particles are confined to a one-dimensional (1D) channel. By introducing the notion of a kinetic temperature, we derive an accurate analytical expression for the pressure and clarify the paradoxical behavior where active Brownian particles confined to 1D exhibit anomalous clustering but no motility-induced phase transition. More generally, this work provides a deeper understanding of pressure in active systems as we uncover a unique link between the kinetic temperature and swim pressure valid for active Brownian particles in higher dimensions.
arXiv comment4 page main text + 3 page SI. Simulation videos available at: https://www.dropbox.com/sh/3jz9bmgv1gfbfd1/AACj8DoMqXtg7U0OKpjkQrMaa?dl=0
References in corpus (77)
- Stochastic thermodynamics, fluctuation theorems, and molecular machines
- Active Particles in Complex and Crowded Environments
- Athermal Phase Separation of Self-Propelled Particles with no Alignment
- Active Brownian Particles. From Individual to Collective Stochastic Dynamics
- Relation Between the Widom line and the Strong-Fragile Dynamic Crossover in Systems with a Liquid-Liquid Phase Transition
- Pressure is not a state function for generic active fluids
- The 2019 Motile Active Matter Roadmap
- Scalar field theory for active-particle phase separation
- Computational models for active matter
- Pressure and Phase Equilibria in Interacting Active Brownian Spheres
- Full phase diagram of active Brownian disks: from melting to motility-induced phase separation
- Towards a 'Thermodynamics' of Active Matter
- Dynamics of Self-Propelled Particles Under Strong Confinement
- Sculpting vesicles with active particles: Less is more
- Generalized Thermodynamics of Phase Equilibria in Scalar Active Matter
- Active particles with soft and curved walls: Equation of state, ratchets, and instabilities
- Virial pressure in systems of active Brownian particles
- From random walk to single-file diffusion
- Tunable long range forces mediated by self-propelled colloidal hard spheres
- Thermodynamic behavior of supercritical matter
- An active approach to colloidal self-assembly
- Thermodynamic phases in two-dimensional active matter
- Unusual swelling of a polymer in a bacterial bath
- Run-and-tumble in a crowded environment: persistent exclusion process for swimmers
- Jamming and Attraction of Interacting Run-and-Tumble Random Walkers
- Activity induced collapse and re-expansion of rigid polymers
- Anomalous Thermomechanical Properties of a Self-propelled Colloidal Fluid
- Phase Diagram of Active Brownian Spheres: Crystallization and the Metastability of Motility-Induced Phase Separation
- Curvature-guided motility of microalgae in geometric confinement
- Swim pressure on walls with curves and corners
- Ideal bulk pressure of active Brownian particles
- Curvature Induced Activation of a Passive Tracer in an Active Bath
- Generic long-range interactions between passive bodies in an active fluid
- Active Contact Forces Drive Non-Equilibrium Fluctuations in Membrane Vesicles
- Chemical potential in active systems: predicting phase equilibrium from bulk equations of state?
- Mechanical pressure and momentum conservation in dry active matter
- Microscopic Origins of the Swim Pressure and the Anomalous Surface Tension of Active Matter
- Curvature-dependent tension and tangential flows at the interface of motility-induced phases
- Mechanical Theory of Nonequilibrium Coexistence and Motility-Induced Phase Separation
- Active Brownian particles near straight or curved walls: Pressure and boundary layers
- How dissipation constrains fluctuations in nonequilibrium liquids: Diffusion, structure and biased interactions
- Pressure of a gas of underdamped active dumbbells
- Oscillatory rheotaxis of active droplets in microchannels
- Single-file escape of colloidal particles from microfluidic channels
- Local stress and pressure in an inhomogeneous system of spherical active Brownian particles
- Single file diffusion of macroscopic charged particles
- Universal scaling in active single-file dynamics
- Fluid-like behavior of a one-dimensional granular gas
- The curved kinetic boundary layer of active matter
- Swimming to Stability: Structural and Dynamical Control via Active Doping
- Active hard-spheres in infinitely many dimensions
- Effective interactions between inclusions in an active bath
- The entropy production of an active particle in a box
- Coexistence of active Brownian discs: Van der Waals theory and analytical results
- Active Brownian Particles Escaping a Channel in Single File
- Pressure in an exactly solvable model of active fluid
- Collective dynamics of active Brownian particles in three spatial dimensions: a predictive field theory
- Activity-induced microswimmer interactions and cooperation in one-dimensional environments
- Coarsening and clustering in run-and-tumble dynamics with short-range exclusion
- Pair-distribution function of active Brownian spheres in two spatial dimensions: simulation results and analytic representation
- An Introduction to Motility-Induced Phase Separation
- Rheology of active fluids
- Anomalous dynamics of an elastic membrane in an active fluid
- Statistical Mechanics of Transport Processes in Active Fluids II: Equations of Hydrodynamics for Active Brownian Particles
- Density dependent speed-up of particle transport in channels
- Universality of active wetting transitions
- Phase separation of active Brownian particles in two dimensions: Anything for a quiet life
- Transition between globule and stretch states of a self-attracting chain in the repulsive active particle bath
- Active fluids at circular boundaries: Swim pressure and anomalous droplet ripening
- Nonexistence of motility induced phase separation transition in one dimension
- Additivity, density fluctuations, and nonequilibrium thermodynamics for active Brownian particles
- Universal reshaping of arrested colloidal gels via active doping
- Analytical canonical partition function of a quasi-one dimensional system of hard disks
- Effective forces between active polymers
- The "isothermal" compressibility of active matter
- Spontaneous assembly of colloidal vesicles driven by active swimmers
- From predicting to learning dissipation from pair correlations of active liquids