Velocity condensation for magnetotactic bacteria
arXiv:1511.03790 · doi:10.1103/PhysRevLett.116.168101
Abstract
Magnetotactic swimmers tend to align along magnetic field lines against stochastic reorientations. We show that the swimming strategy, e.g. active Brownian motion versus run-and-tumble dynamics, strongly affects the orientation statistics. The latter can exhibit a velocity condensation whereby the alignment probability density diverges. As a consequence, we find that the swimming strategy affects the nature of the phase transition to collective motion, indicating that Lévy run-and-tumble walks can outperform active Brownian processes as strategies to trigger collective behavior.
5 pages, 5 figures
References in corpus (7)
- Diffusive transport without detailed balance in motile bacteria: Does microbiology need statistical physics?
- Collective motion and nonequilibrium cluster formation in colonies of gliding bacteria
- Gravitaxis of asymmetric self-propelled colloidal particles
- Enhanced diffusion and ordering of self-propelled rods
- Artificial Rheotaxis
- Mechanism for collective cell alignment in Myxococcus xanthus bacteria
- Comparison between Smoluchowski and Boltzmann approaches for self-propelled rods
Cited by in corpus (13)
- Viscotaxis: microswimmer navigation in viscosity gradients
- Magnetotactic bacteria in a droplet self-assemble into a rotary motor
- Brownian motion of a circle swimmer in a harmonic trap
- Run-and-Tumble-Like Motion of Active Colloids in Viscoelastic Media
- Dynamics of a helical swimmer crossing viscosity gradients
- Magnetic microswimmers exhibit Bose-Einstein-like condensation
- Controlling stability and transport of magnetic microswimmers by an external field
- Persistence in Brownian motion of an ellipsoidal particle in two dimensions
- Role of Topology in Relaxation of One-Dimensional Stochastic Processes
- Swimmer dynamics in externally-driven fluid flows: The role of noise
- Rototaxis: localization of active motion under rotation
- Hermitian and non-Hermitian topology in active matter
- Viscotaxis of chiral microswimmer in viscosity gradients