@article{Knippenberg2022-12cohes-57982,
  year={2022},
  doi={10.1038/s41598-022-15577-w},
  title={Role of cohesion in the flow of active particles through bottlenecks},
  number={1},
  volume={12},
  journal={Scientific Reports},
  author={Knippenberg, Timo and Lüders, Anton and Lozano, Celia and Nielaba, Peter and Bechinger, Clemens},
  note={Article Number: 11525}
}

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    <dc:creator>Nielaba, Peter</dc:creator>
    <dc:creator>Lozano, Celia</dc:creator>
    <dcterms:issued>2022-12</dcterms:issued>
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    <dc:contributor>Lüders, Anton</dc:contributor>
    <dc:contributor>Bechinger, Clemens</dc:contributor>
    <dcterms:title>Role of cohesion in the flow of active particles through bottlenecks</dcterms:title>
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    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2022-07-08T09:39:44Z</dc:date>
    <dc:creator>Lüders, Anton</dc:creator>
    <dc:creator>Knippenberg, Timo</dc:creator>
    <dc:language>eng</dc:language>
    <dc:contributor>Lozano, Celia</dc:contributor>
    <dcterms:abstract xml:lang="eng">We experimentally and numerically study the flow of programmable active particles (APs) with tunable cohesion strength through geometric constrictions. Similar to purely repulsive granular systems, we observe an exponential distribution of burst sizes and power-law-distributed clogging durations. Upon increasing cohesion between APs, we find a rather abrupt transition from an arch-dominated clogging regime to a cohesion-dominated regime where droplets form at the aperture of the bottleneck. In the arch-dominated regime the flow-rate only weakly depends on the cohesion strength. This suggests that cohesion must not necessarily decrease the group’s efficiency passing through geometric constrictions or pores. Such behavior is explained by “slippery” particle bonds which avoids the formation of a rigid particle network and thus prevents clogging. Overall, our results confirm the general applicability of the statistical framework of intermittent flow through bottlenecks developed for granular materials also in case of active microswimmers whose behavior is more complex than that of Brownian particles but which mimic the behavior of living systems.</dcterms:abstract>
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    <dc:contributor>Knippenberg, Timo</dc:contributor>
    <dc:contributor>Nielaba, Peter</dc:contributor>
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    <dc:creator>Bechinger, Clemens</dc:creator>
    <dc:rights>Attribution 4.0 International</dc:rights>
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