论文标题
一系列手性活动游泳者的宏到微相分离
Macro to micro phase separation in a collection of chiral active swimmers
论文作者
论文摘要
我们使用广泛的数值研究研究了在二维底物上的手性活性颗粒(CAP)的集合。颗粒通过软排斥相互作用相互作用。粒子的活性和手性分别通过分别改变其自我刺激速度和角速度来调节。研究了颗粒的动力学和稳态特性,以进行不同的手性和活性。活动平面上系统的相图显示了三个不同的阶段。对于小手性,当活性显性时,颗粒显示出增强的动力学,并且观察到有序簇的宏观相分离。对于中等的手性,观察到微聚类相,其中形成了中等排序的小簇。对于大型手性,当手性主导时,找不到聚类,因为粒子运动主要局限于其位置。我们的研究详细介绍了手性对CAP收集特性的影响,这对于了解许多天然微型游泳者的动态和稳态很有用。
We studied a collection of chiral active particles (CAP) on a two dimensional substrate using extensive numerical study. Particles interact through soft repulsive interaction. The activity and chirality of particles is tuned by varying their self-propulsion speed and angular velocity respectively. Kinetics and steady state properties of particles are studied for different chirality and activity. The phase diagram of system on the plane of activity and chirality shows three distinct phases. For small chirality when activity is dominant, particles show enhanced dynamics and macroscopic phase separation of ordered clusters is observed. For moderate chirality, micro clustered phase is observed in which small clusters with moderate ordering are formed. For large chirality, when chirality dominates, no clustering is found because particle motion is mainly confined to its location. Our study gives a detail insight into the effect of chirality on the properties of collection of CAP, which can be useful to understand the dynamics and steady state of many natural micro swimmers.