Rectification and diffusion of self-propelled particles in a two-dimensional corrugated channel

Abstract

Rectification and diffusion of non-interacting self-propelled particles is numerically investigated in a two-dimensional corrugated channel. From numerical simulations, we obtain the average velocity and the effective diffusion coefficient. It is found that the self-propelled particles can be rectified by the self-propelled velocity. There exist optimal values of the parameters (the self-propelled velocity, the translational diffusion constant, and the height of the potential) at which the average velocity takes its maximal value. There exists an optimal translational diffusion at which the effective diffusion constant is maximal. The self-propelled velocity can strongly increase the effective diffusion, while the large rotational diffusion rate can strongly suppress the effective diffusion.

16pages, 11figures

References in corpus (31)

• Brownian motors: noisy transport far from equilibrium
• The hydrodynamics of swimming microorganisms
• Self-motile colloidal particles: from directed propulsion to random walk
• Artificial Brownian motors: Controlling transport on the nanoscale
• Dynamical clustering and phase separation in suspensions of self-propelled colloidal particles
• Athermal Phase Separation of Self-Propelled Particles with no Alignment
• Statistical Mechanics of Interacting Run-and-Tumble Bacteria
• A bacterial ratchet motor
• Circular motion of asymmetric self-propelling particles
• Active Jamming: Self-propelled soft particles at high density
• Microscopic theory for the phase separation of self-propelled repulsive disks
• Self-propelled Janus particles in a ratchet: Numerical simulations
• Self-Starting Micromotors in a Bacterial Bath
• Rectification of Swimming Bacteria and Self Driven Particle Systems by Arrays of Asymmetric Barriers
• Active colloidal suspensions exhibit polar order under gravity
• Deformable self-propelled particles
• Traffic jams, gliders, and bands in the quest for collective motion
• Current in a three-dimensional periodic tube with unbiased forces
• Flow pattern in the vicinity of self-propelling hot Janus particles
• Collective dynamics of self-propelled particles with variable speed
• Capturing self-propelled particles in a moving microwedge
• Negative Resistance in Brownian Transport
• Rectification of self-propelled particles by symmetric barriers
• Active Brownian particles with velocity-alignment and active fluctuations
• Multiple current reversals in forced inhomogeneous ratchets
• Active motion assisted by correlated stochastic torques
• Transport of overdamped Brownian particles in a two-dimensional tube: Nonadiabatic regime
• Escape rate of an active Brownian particle over a potential barrier
• Directed transport driven by the transverse wall vibration
• Noise-assisted classical adiabatic pumping in a symmetric periodic potential
• Noise-induced vortex reversal of self-propelled particles

Cited by in corpus (29)

• Active Particles in Complex and Crowded Environments
• Dynamics of Self-Propelled Particles Under Strong Confinement
• Time-(ir)reversibility in active matter: from micro to macro
• Geometrical guidance and trapping transition of human sperm cells
• A classical nucleation theory description of active colloid assembly
• Autonomous engines driven by active matter: Energetics and design principles
• Dynamics and density distribution of strongly confined noninteracting nonaligning self-propelled particles in a nonconvex boundary
• Chirality separation of mixed chiral microswimmers in a periodic channel
• Transport of active ellipsoidal particles in ratchet potentials
• Topotaxis of active Brownian particles
• Enhanced dynamics of active Brownian particles in periodic obstacle arrays and corrugated channels
• Entropic Ratchet transport of interacting active Brownian particles
• Directed Autonomous Motion and Chiral Separation of Self-Propelled Janus Particles in Convection Roll Arrays
• Transport of underdamped active particles in ratchet potentials
• Statistical properties of a tangentially driven active filament
• Shape matters: A Brownian microswimmer in a channel
• Microorganism Billiards
• Diffusion of interacting particles in a channel with reflection boundary conditions
• Diffusion of chiral active particles in a Poiseuille flow
• Effects of hydrodynamic interactions on rectified transport of self-propelled particles
• Transport and diffusion properties of Brownian particles powered by a rotating wheel
• Future Directions for Active Matter on Ordered Substrates
• Anisotropic active Brownian particle with a fluctuating propulsion force
• Hydrodynamic approximations for driven dense colloidal mixtures in narrow pores
• Macrotransport of active particles in periodic channels and fields: rectification and dispersion
• The transport phenomenon of inertia Brownian particles in a periodic potential with non-Gaussian noise
• Curvature induces and enhances transport of spinning colloids through narrow channels
• Jamming of active particles in narrow pores: Implications for ratchet effect and diffusion coefficient
• Ratchet effect and jamming in dense mixtures of active and passive colloids in narrow pores