Confinement and collective escape of active particles
- 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.
| Author details: | Igor S. AransonORCiDGND, Arkadij PikovskijORCiDGND |
|---|---|
| DOI: | https://doi.org/10.1103/PhysRevLett.128.108001 |
| ISSN: | 0031-9007 |
| ISSN: | 1079-7114 |
| ISSN: | 1092-0145 |
| Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/35333075 |
| Title of parent work (English): | Physical review letters |
| Publisher: | American Physical Society |
| Place of publishing: | College Park, Md. |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2022/03/10 |
| Publication year: | 2022 |
| Release date: | 2024/04/25 |
| Volume: | 128 |
| Issue: | 10 |
| Article number: | 108001 |
| Number of pages: | 6 |
| Funding institution: | Russian Science Foundation [17-12-01534]; German Science Foundation [PI; 220/22-1]; U.S. Department of Energy, Office of Science, Basic Energy; Sciences [DE-SC0020964] |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 50 Naturwissenschaften / 500 Naturwissenschaften und Mathematik |
| 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik | |
| Peer review: | Referiert |
