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Aggregation-fragmentation and individual dynamics of active clusters

Author

Listed:
  • F. Ginot

    (Univ. Lyon, Université Claude Bernard Lyon 1, CNRS,UMR 5306, Institut Lumière Matière)

  • I. Theurkauff

    (Univ. Lyon, Université Claude Bernard Lyon 1, CNRS,UMR 5306, Institut Lumière Matière)

  • F. Detcheverry

    (Univ. Lyon, Université Claude Bernard Lyon 1, CNRS,UMR 5306, Institut Lumière Matière)

  • C. Ybert

    (Univ. Lyon, Université Claude Bernard Lyon 1, CNRS,UMR 5306, Institut Lumière Matière)

  • C. Cottin-Bizonne

    (Univ. Lyon, Université Claude Bernard Lyon 1, CNRS,UMR 5306, Institut Lumière Matière)

Abstract

A remarkable feature of active matter is the propensity to self-organize. One striking instance of this ability to generate spatial structures is the cluster phase, where clusters broadly distributed in size constantly move and evolve through particle exchange, breaking or merging. Here we propose an exhaustive description of the cluster dynamics in apolar active matter. Exploiting large statistics gathered on thousands of Janus colloids, we measure the aggregation and fragmentation rates and rationalize the resulting cluster size distribution and fluctuations. We also show that the motion of individual clusters is entirely consistent with a model positing random orientation of colloids. Our findings establish a simple, generic model of cluster phase, and pave the way for a thorough understanding of clustering in active matter.

Suggested Citation

  • F. Ginot & I. Theurkauff & F. Detcheverry & C. Ybert & C. Cottin-Bizonne, 2018. "Aggregation-fragmentation and individual dynamics of active clusters," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-017-02625-7
    DOI: 10.1038/s41467-017-02625-7
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    Cited by:

    1. Jens Grauer & Falko Schmidt & Jesús Pineda & Benjamin Midtvedt & Hartmut Löwen & Giovanni Volpe & Benno Liebchen, 2021. "Active droploids," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    2. Hao Wu & Xiangyi Meng & Michael M. Danziger & Sean P. Cornelius & Hui Tian & Albert-László Barabási, 2022. "Fragmentation of outage clusters during the recovery of power distribution grids," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    3. Helena Massana-Cid & Claudio Maggi & Giacomo Frangipane & Roberto Di Leonardo, 2022. "Rectification and confinement of photokinetic bacteria in an optical feedback loop," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    4. Noman Hanif Barbhuiya & A. G. Yodh & Chandan K. Mishra, 2023. "Direction-dependent dynamics of colloidal particle pairs and the Stokes-Einstein relation in quasi-two-dimensional fluids," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    5. Cristóvão S. Dias & Manish Trivedi & Giovanni Volpe & Nuno A. M. Araújo & Giorgio Volpe, 2023. "Environmental memory boosts group formation of clueless individuals," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    6. Adérito Fins Carreira & Adam Wysocki & Christophe Ybert & Mathieu Leocmach & Heiko Rieger & Cécile Cottin-Bizonne, 2024. "How to steer active colloids up a vertical wall," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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