论文标题
在强限制下进行冲浪和爬行宏观活动颗粒 - 惯性动力学
Surfing and crawling macroscopic active particles under strong confinement -- inertial dynamics
论文作者
论文摘要
我们使用实验，理论和数值方法研究了两种类型的活性（自属性）宏观颗粒：樟脑冲浪者和六角爬虫。与经过广泛研究的微观活性颗粒和游泳者不同，热力通常很重要并且惯性忽略不计，我们的宏观颗粒表现出复杂的动力学，这是由于有效的非热噪声而明确的，结合了惯性效应。强限制在边界内有限距离诱导积累，并产生三个可区分的动力状态。取决于活动和惯性。这些令人惊讶的复杂动力学已经在单个粒子级别出现 - 突出了惯性在宏观活动物质中的重要性。
We study two types of active (self-propelled) macroscopic particles under confinement: camphor surfers and hexbug crawlers, using a combined experimental, theoretical, and numerical approach. Unlike widely studied microscopic active particles and swimmers, where thermal forces are often important and inertia is negligible, our macroscopic particles exhibit complex dynamics due expressly to active non-thermal noise combined with inertial effects. Strong confinement induces accumulation at a finite distance within the boundary and gives rise to three distinguishable dynamical states; both depending on activity and inertia. These surprisingly complex dynamics arise already at the single particle level -- highlighting the importance of inertia in macroscopic active matter.
