Yang Jing, Ni Ran, Ciamarra Massimo Pica
Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371.
Chemical Engineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459.
Phys Rev E. 2022 Jul;106(1):L012601. doi: 10.1103/PhysRevE.106.L012601.
In living and engineered systems of active particles, self-propulsion induces an unjamming transition from a solid to a fluid phase and phase separation between a gas and a liquidlike phase. We demonstrate an interplay between these two nonequilibrium transitions in systems of persistent active particles. The coexistence and jamming lines in the activity-density plane meet at the jamming transition point in the limit of hard particles or zero activity. This interplay induces an anomalous dynamic in the liquid phase and hysteresis at the active jamming transition.
在活性粒子的生物和工程系统中，自推进诱导了从固相到流体相的解阻塞转变以及气体和类液相之间的相分离。我们展示了在持久活性粒子系统中这两种非平衡转变之间的相互作用。在硬粒子极限或零活性条件下，活性-密度平面中的共存线和阻塞线在阻塞转变点相交。这种相互作用在液相中诱导了反常动力学，并在活性阻塞转变处产生了滞后现象。
