ArticleSoft matter2024
Topological defects in multi-layered swarming bacteria.
Article in Soft matter, 2024. 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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Who cites it
4 citing papers in PubMed.
- Topological defects lead to energy transfer in active nematics.Nature communications · 2026Article
- From Polar Clusters to Active Nematics: Experimental Signatures of Swarming Dynamics in Bacterial Monolayers.Materials (Basel, Switzerland) · 2026Article
- Hidden order in active nematic defects.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
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Authors and funding
4 authors.
Funding
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Abstract
Topological defects, which are singular points in a director field, play a major role in shaping active systems. Here, we experimentally study topological defects and the flow patterns around them, that are formed during the highly rapid dynamics of swarming bacteria. The results are compared to the predictions of two-dimensional active nematics. We show that, even though some of the assumptions underlying the theory do not hold, the swarm dynamics is in agreement with two-dimensional nematic theory. In particular, we look into the multi-layered structure of the swarm, which is an important feature of real, natural colonies, and find a strong coupling between layers. Our results suggest that the defect-charge density is hyperuniform,
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