The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.
Flocking at a distance in active granular matter
Open accessAbstract
The self-organized motion of vast numbers of creatures in a single direction is a spectacular example of emergent order. Here, we recreate this phenomenon using actuated nonliving components. We report here that millimetre-sized tapered rods, rendered motile by contact with an underlying vibrated surface and interacting through a medium of spherical beads, undergo a phase transition to a state of spontaneous alignment of velocities and orientations above a threshold bead area fraction. Guided by a detailed simulation model, we construct an analytical theory of this flocking transition, with two ingredients: a moving rod drags beads; neighbouring rods reorient in the resulting flow like a weathercock in the wind. Theory and experiment agree on the structure of our phase diagram in the plane of rod and bead concentrations and power-law spatial correlations near the phase boundary. Our discovery suggests possible new mechanisms for the collective transport of particulate or cellular matter. Flocking emerges from communication within groups of animals. Here, Kumar et al. create a flock in inanimate matter, by showing that a vibrated layer of a small number of millimetre-sized tapered rods, amidst a background of spherical beads, spontaneously aligns into a state of coherent motion.
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Catalytic Nanomotors: Autonomous Movement of Striped Nanorods
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Living Crystals of Light-Activated Colloidal Surfers
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Active matter at the interface between materials science and cell biology
Needleman, D., & Dogic, Z. (2017) · Nature Reviews Materials · doi:10.1038/natrevmats.2017.48 · Cited by 649
Swarm Robotics: Past, Present, and Future [Point of View]
Dorigo, M., Theraulaz, G., & Trianni, V. (2021) · Proceedings of the IEEE · doi:10.1109/jproc.2021.3072740 · Cited by 431
Physical Models of Collective Cell Migration
Alert, R., & Trepat, X. (2020) · Annual Review of Condensed Matter Physics · doi:10.1146/annurev-conmatphys-031218-013516 · Cited by 375
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The statistical physics of active matter: From self-catalytic colloids to living cells
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Metadata
- Authors
- Kumar, N., Soni, H., Ramaswamy, S., & Sood, A. K.
- Venue
- Nature Communications
- Published
- 2014-09-03
- Volume
- 5
- Issue
- 1
- Pages
- 4688-4688
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W1984966278
- Cited by
- 297
- References
- 27
- FWCI
- 13.63
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Kumar, N., Soni, H., Ramaswamy, S., & Sood, A. K. (2014). Flocking at a distance in active granular matter. Nature Communications. https://doi.org/10.1038/ncomms5688
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
