Confinement and Collective Escape of Active Particles

Igor S. Aranson, Arkady Pikovsky

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Active matter broadly covers the dynamics of self-propelled particles. While the onset of collective behavior in homogenous active systems is relatively well understood, the effect of inhomogeneities such as obstacles and traps lacks overall clarity. Here, we study how interacting, self-propelled particles become trapped and released from a trap. We have found that captured particles aggregate into an orbiting condensate with a crystalline structure. As more particles are added, the trapped condensates escape as a whole. Our results shed light on the effects of confinement and quenched disorder in active matter.

Original languageEnglish (US)
Article number108001
JournalPhysical review letters
Issue number10
StatePublished - Mar 11 2022

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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