Self-propelled rods
- A wide range of experimental systems including gliding, swarming and swimming bacteria, in vitro motility assays, and shaken granular media are commonly described as self-propelled rods. Large ensembles of those entities display a large variety of self-organized, collective phenomena, including the formation of moving polar clusters, polar and nematic dynamic bands, mobility-induced phase separation, topological defects, and mesoscale turbulence, among others. Here, we give a brief survey of experimental observations and review the theoretical description of self-propelled rods. Our focus is on the emergent pattern formation of ensembles of dry self-propelled rods governed by short-ranged, contact mediated interactions and their wet counterparts that are also subject to long-ranged hydrodynamic flows. Altogether, self-propelled rods provide an overarching theme covering many aspects of active matter containing well-explored limiting cases. Their collective behavior not only bridges the well-studied regimes of polar selfpropelledA wide range of experimental systems including gliding, swarming and swimming bacteria, in vitro motility assays, and shaken granular media are commonly described as self-propelled rods. Large ensembles of those entities display a large variety of self-organized, collective phenomena, including the formation of moving polar clusters, polar and nematic dynamic bands, mobility-induced phase separation, topological defects, and mesoscale turbulence, among others. Here, we give a brief survey of experimental observations and review the theoretical description of self-propelled rods. Our focus is on the emergent pattern formation of ensembles of dry self-propelled rods governed by short-ranged, contact mediated interactions and their wet counterparts that are also subject to long-ranged hydrodynamic flows. Altogether, self-propelled rods provide an overarching theme covering many aspects of active matter containing well-explored limiting cases. Their collective behavior not only bridges the well-studied regimes of polar selfpropelled particles and active nematics, and includes active phase separation, but also reveals a rich variety of new patterns.…
Author details: | Markus Bär, Robert GroßmannORCiD, Sebastian HeidenreichORCiD, Fernando PeruaniORCiD |
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DOI: | https://doi.org/10.1146/annurev-conmatphys-031119-050611 |
ISSN: | 1947-5454 |
ISSN: | 1947-5462 |
Title of parent work (English): | Annual review of condensed matter physics |
Subtitle (English): | insights and perspectives for active matter |
Publisher: | Annual Reviews |
Place of publishing: | Palo Alto |
Publication type: | Article |
Language: | English |
Date of first publication: | 2019/12/09 |
Publication year: | 2019 |
Release date: | 2023/10/16 |
Tag: | biological physics; collective motion; nonequilibrium physics; statistical physics; stochastic processes |
Volume: | 11 |
Number of pages: | 26 |
First page: | 441 |
Last Page: | 466 |
Funding institution: | Deutsche Forschungsgemeinschaft (DFG) German Research Foundation (DFG); [SFB910]; DFG Middle East Collaboration [396653815]; Agence Nationale de; la RechercheFrench National Research Agency (ANR)European Commission; [ANR-15-CE30-0002-01] |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Peer review: | Referiert |