ArticleScientific reports2022
Collective motion of active particles exhibiting non-reciprocal orientational interactions.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 39 citations in OpenAlex.
- Emergent collective behavior of cohesive, aligning particles.The European physical journal. E, Soft matter · 2025Article
- Topological transition in filamentous cyanobacteria: from motion to structure.Communications physics · 2024Article
- Spatial Distribution of Flagellated MicroalgaeMicromachines · 2023Article
- Defining collective irrationality of COVID-19: shared mentality, mimicry, affective contagion, and psychosocial adaptivity.Frontiers in psychology · 2023Review
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Authors and funding
3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
We present a Brownian dynamics study of a 2D bath of active particles interacting among each other through usual steric interactions and, additionally, via non-reciprocal avoidant orientational interactions. We motivate them by the fact that the two flagella of the alga Chlamydomonas interact sterically with nearby surfaces such that a torque acts on the alga. As expected, in most cases such interactions disrupt the motility-induced particle clustering in active baths. Surprisingly, however, we find that the active particles can self-organize into collectively moving flocks if the range of non-reciprocal interactions is close to that of steric interactions. We observe that the flocking motion can manifest itself through a variety of structural forms, spanning from single dense bands to multiple moderately-dense stripes, which are highly dynamic. The flocking order parameter is found to be only weakly dependent on the underlying flock structure. Together with the variance of the local-density distribution, one can clearly group the flocking motion into the two separate band and dynamic-stripes states.
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