Rototaxis: localization of active motion under rotation
arXiv:1911.13276 · doi:10.1103/PhysRevResearch.2.023079
Abstract
The ability to navigate in complex, inhomogeneous environments is fundamental to survival at all length scales, giving rise to the rapid development of various subfields in bio-locomotion such as the well established concept of chemotaxis. In this work, we extend this existing notion of taxis to rotating environments and introduce the idea of roto-taxis to bio-locomotion. In particular, we explore both overdamped and inertial dynamics of a model synthetic self-propelled particle in the presence of constant global rotation, focusing on the particle's ability to localize near a rotation center as a survival strategy. We find that in the overdamped regime, the swimmer is in general able to generate a self restoring active torque that enables it to remain on stable epicyclical-like trajectories. On the other hand, for underdamped motion with inertial effects, the intricate competition between self-propulsion and inertial forces, in conjunction with the rototactic torque leads to complex dynamical behavior with non-trivial phase space of initial conditions which we reveal by numerical simulations. Our results are relevant for a wide range of setups, from vibrated granular matter on turntables to microorganisms or animals swimming near swirls or vortices.
arXiv comment9 pages, 7 figures
References in corpus (48)
- Active Particles in Complex and Crowded Environments
- Collective motion
- Physics of Microswimmers - Single Particle Motion and Collective Behavior
- Statistical mechanics for natural flocks of birds
- A Simplest Swimmer at Low Reynolds Number: Three Linked Spheres
- Circular motion of asymmetric self-propelling particles
- Superfluid transport of information in turning flocks of starlings
- Phototaxis of synthetic microswimmers in optical landscapes
- Clusters, asters and collective oscillations in chemotactic colloids
- Gravitaxis of asymmetric self-propelled colloidal particles
- Inertial effects of self-propelled particles: from active Brownian to active Langevin motion
- 'Fuelled' motion: phoretic motility and collective behaviour of active colloids
- Dynamic clustering and chemotactic collapse of self-phoretic active particles
- Inertial delay of self-propelled particles
- Generic Conditions for Hydrodynamic Synchronization
- Periodic and Quasiperiodic Motion of an Elongated Microswimmer in Poiseuille Flow
- Clustering and pattern formation in chemorepulsive active colloids
- Oscillatory surface rheotaxis of swimming E. coli bacteria
- Light control of the flow of phototactic microswimmer suspensions
- Swarming, swirling and stasis in sequestered bristle-bots
- Activity induced synchronization: From Mutual Flocking to Chiral Self-Sorting
- The topography of the environment alters the optimal search strategy for active particles
- Viscotaxis: microswimmer navigation in viscosity gradients
- A steering mechanism for phototaxis in Chlamydomonas
- Realization of the Najafi-Golestanian microswimmer
- Magnetotactic bacteria in a droplet self-assemble into a rotary motor
- Pattern Formation in Chemically Interacting Active Rotors with Self-Propulsion
- Dynamical patterns in active nematics on a sphere
- Destabilization of a flow focused suspension of magnetotactic bacteria
- Relating microswimmer synthesis to rheotactic tunability
- Swimming bacteria in Poiseuille flow: the quest for active Bretherton-Jeffery trajectories
- Helical paths, gravitaxis, and separation phenomena for mass-anisotropic self-propelling colloids: experiment versus theory
- Swimming trajectories of a three-sphere microswimmer near a wall
- State diagram of a three-sphere microswimmer in a channel
- Alignment of non-spherical active particles in chaotic flows
- Topotaxis of active Brownian particles
- Orientational dynamics of weakly inertial axisymmetric particles in steady viscous flows
- Velocity condensation for magnetotactic bacteria
- Fractal aggregation of active particles
- Getting drowned in a swirl: deformable bead-spring model microswimmers in external flow fields
- Active particles in non-inertial frames: how to self-propel on a carousel
- A deformable microswimmer in a swirl: capturing and scattering dynamics
- Resonant alignment of microswimmer trajectories in oscillatory shear flows
- Optimal motion of triangular magnetocapillary swimmers
- Capillary assemblies in a rotating magnetic field
- Linearly forced fluid flow on a rotating sphere
- Shearing in flow environment promotes evolution of social behavior in microbial populations
- Inertial self-propulsion of spherical microswimmers by rotation-translation coupling