| A Quorum Sensing Active Matter in a Confined Geometry |
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| 作者姓名： | 周雨欣 李云云 Fabio Marchesoni |
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| 作者单位： | 2. Dipartimento di Fisica, Università di Camerino |
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| 基金项目： | supported by the National Natural Science Foundation of China (Grant Nos. 12375037 and 11935010)； |
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| 摘 要： | 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 th...
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