2008/09/02 by Pawel Romanczuk, Paweł Romańczuk, Iain D. Couzin +1 · 285 citations
Biochemistry, Genetics and Molecular Biology · Computer Science · Mathematics · Physics and Astronomy · #Brownian motion #Classical mechanics #Collective motion #Diffusion and Search Dynamics #Distributed Control Multi-Agent Systems #Dynamics (music) #Mathematics #Mechanism (biology) #Micro and Nano Robotics #Motion (physics) #Observable #Physics #Quantum mechanics #Scaling #Simple (philosophy) #Statistical physics #cond-mat.other #cond-mat.stat-mech
paper · pdf · doi:10.1103/physrevlett.102.010602
published in Physical Review Letters 102(1), 010602 (American Physical Society)
arxiv created 2008/09/02 · openalex publication_date 2009/01/08 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Recent studies suggest that noncooperative behavior such as cannibalism may be a driving mechanism of collective motion. Motivated by these novel results we introduce a simple model of Brownian particles interacting by biologically motivated pursuit and escape interactions. We show the onset of collective motion for both interaction types and analyze their impact on the global dynamics. We demonstrate a strong dependence of experimentally accessible macroscopic observables on the relative strength of escape and pursuit and determine the scaling of the migration speed with model parameters.