Statistical Physics

Collective motion of self-propelled particles: kinetic phase transition in one dimension

We demonstrate that a system of self-propelled particles exhibits spontaneous symmetry breaking and self-organization in one dimension, in contrast with previous analytical predictions. To explain this surprising result we derive a new continuum theory that can account for the development of the symmetry broken state and belongs to the same universality class as the discrete self-propelled particle model.


More publications
C. Lee, A.-L. Barabási

Applied Physics Letters 73, 2651-2653 (1998)

R. Albert, A.-L. Barabási

Physical Review Letters 84, 5660-5663 (2000)

A.-L. Barabási

Applied Physics Letters 70, 764–767 (1997)