Locomotion and transport of microorganisms in fluids is an essential aspect of life. Search
for food, orientation toward light, spreading of off-spring, and the formation of colonies are …

We review theoretical models of individual motility as well as collective dynamics and
pattern formation of active particles. We focus on simple models of active dynamics with a …

Recent models from theoretical physics have predicted that mass-migrating animal groups
may share group-level properties, irrespective of the type of animals in the group. One key …

A wide range of experimental systems including gliding, swarming and swimming bacteria,
in vitro motility assays, and shaken granular media are commonly described as self …

We present a comprehensive study of Vicsek-style self-propelled particle models in two and
three space dimensions. The onset of collective motion in such stochastic models with only …

At concentrations near the maximum allowed by steric repulsion, swimming bacteria form a
dynamical state exhibiting extended spatiotemporal coherence. The viscous fluid into which …

Flocking behaviour is often presented as an example of a self-organized process, where
individuals continuously negotiate on the direction of travel and compromise by moving …

We characterize cell motion in experiments and show that the transition to collective motion
in colonies of gliding bacterial cells confined to a monolayer appears through the …

A remarkable feature of active matter is the propensity to self-organize. One striking instance
of this ability to generate spatial structures is the cluster phase, where clusters broadly …

In this paper, we study self-organized flocking in a swarm of mobile robots. We present
Kobot, a mobile robot platform developed specifically for swarm robotic studies. We describe …