论文标题

方向依赖于活性布朗球体的推进:从自变义到可编程群集形状

Orientation-dependent propulsion of active Brownian spheres: from self-advection to programmable cluster shapes

论文作者

Bröker, Stephan, Bickmann, Jens, Vrugt, Michael te, Cates, Michael E., Wittkowski, Raphael

论文摘要

活动粒子的应用需要一种控制其动力学的方法。尽管这通常是通过直接干预来实现的,但基于间接干预措施,例如,基于粒子的方向依赖性自我刺激速度,它变得越来越流行。在这项工作中,我们研究了使用分析建模和布朗动力学模拟的两个空间维度与方向依赖性推进的相互作用的系统的系统。发现方向依赖性会导致自变义,循环电流和可编程簇形状。

Applications of active particles require a method for controlling their dynamics. While this is typically achieved via direct interventions, indirect interventions based, e.g., on an orientation-dependent self-propulsion speed of the particles, become increasingly popular. In this work, we investigate systems of interacting active Brownian spheres in two spatial dimensions with orientation-dependent propulsion using analytical modeling and Brownian dynamics simulations. It is found that the orientation-dependence leads to self-advection, circulating currents, and programmable cluster shapes.

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