Inon Cohen

Novel type of phase transition in a system of self-driven particles

A simple model with a novel type of dynamics is introduced in order to investigate the emergence of self-ordered motion in systems of particles with biologically motivated interaction. In our model particles are driven with a constant absolute velocity and at each time step assume the average direction of motion of the particles in their neighborhood with some random perturbation

Self-organization in systems of self-propelled particles

(\ensuremath{\eta})

Studies of bacterial branching growth using reaction–diffusion models for colonial development

added. We present numerical evidence that this model results in a kinetic phase transition from no transport (zero average velocity,

Lubricating bacteria model for branching growth of bacterial colonies.

|{\mathbf{v}}_{a}|\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0

Aggregation Patterns in Stressed Bacteria.

) to finite net transport through spontaneous symmetry breaking of the rotational symmetry. The transition is continuous, since

BACTERIAL COOPERATIVE ORGANIZATION UNDER ANTIBIOTIC STRESS

|{\mathbf{v}}_{a}|

CONTINUOUS AND DISCRETE MODELS OF COOPERATION IN COMPLEX BACTERIAL COLONIES

is found to scale as

Chemotactic-based adaptive self-organization during colonial development

({\ensuremath{\eta}}_{c}\ensuremath{-}\ensuremath{\eta}{)}^{\ensuremath{\beta}}

Studies of sector formation in expanding bacterial colonies

with

From branching to nebula patterning during colonial development of the Paenibacillus alvei bacteria

\ensuremath{\beta}\ensuremath{\simeq}0.45