A Quorum Sensing Active Matter in a Confined Geometry
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Abstract
Inspired by the problem of biofilm growth, we numerically investigate clustering in a two-dimensional suspension of active (Janus) particles of finite size confined in a circular cavity. Their dynamics is regulated by a non-reciprocal mechanism that causes them to switch from active to passive above a certain threshold of the perceived near-neighbor density (quorum sensing). A variety of cluster phases, i.e., glassy, solid (hexatic) and liquid, are observed, depending on the particle dynamics at the boundary, the quorum sensing range, and the level of noise.
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Yuxin Zhou, Yunyun Li, Fabio Marchesoni. A Quorum Sensing Active Matter in a Confined Geometry[J]. Chin. Phys. Lett., 2023, 40(10): 100505. DOI: 10.1088/0256-307X/40/10/100505
Yuxin Zhou, Yunyun Li, Fabio Marchesoni. A Quorum Sensing Active Matter in a Confined Geometry[J]. Chin. Phys. Lett., 2023, 40(10): 100505. DOI: 10.1088/0256-307X/40/10/100505
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Yuxin Zhou, Yunyun Li, Fabio Marchesoni. A Quorum Sensing Active Matter in a Confined Geometry[J]. Chin. Phys. Lett., 2023, 40(10): 100505. DOI: 10.1088/0256-307X/40/10/100505
Yuxin Zhou, Yunyun Li, Fabio Marchesoni. A Quorum Sensing Active Matter in a Confined Geometry[J]. Chin. Phys. Lett., 2023, 40(10): 100505. DOI: 10.1088/0256-307X/40/10/100505
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