哑铃形约束两叶之间马兰戈尼冲浪者的随机迁移
Stochastic migrations of Marangoni surfers between two lobes of a dumbbell-shaped confinement
AI总结:
本研究实验探讨了马兰戈尼冲浪者在哑铃形腔室两叶间的随机迁移动力学,利用生存分析发现各配置呈拉伸指数衰减,最稳定状态为圆盘均等分配,并用手性活性粒子模型验证了老化导致该衰减行为。
摘要:
我们报告了一项关于马兰戈尼冲浪者(浸有樟脑的纸盘)在哑铃形腔室两叶之间随机迁移动力学的实验研究。我们使用生存分析来表征在给定配置(即每个叶片中有特定且唯一的圆盘数量)下的迁移动力学。在定性上,所有配置都表现出随时间的拉伸指数衰减,这归因于圆盘的老化。给定配置的稳定性随着成对相互作用的增加而降低。最稳定的配置始终是圆盘在两叶之间均等分配的配置,即对于偶数系统,每个叶片中恰好有一半的圆盘,而对于奇数系统,则在其中一个叶片中多出一个圆盘。此外,我们将樟脑盘建模为手性活性粒子(CAP),如Cruz等人最初提出的那样,并表明运动能力的降低(或老化)确实导致了拉伸指数行为。
英文摘要:
We report an experimental investigation on the stochastic migration dynamics of Marangoni surfers (camphor-infused paper disks) between the two lobes of a dumbbell-shaped chamber. We characterize the migration dynamics using survival analysis for a given configuration with a unique disk count in each lobe. Qualitatively, all the configurations exhibit stretched exponential decay with time, ascribed to a disk s aging. A given configuration s stability decreases with increasing pairwise interactions. The most stable configuration is always the one with equal partitioning of disks between the lobes, i.e., exactly one-half of disks in each lobe for even-numbered systems but with one extra disk in either of the lobes for odd-numbered systems. Furthermore, we model a camphor disk as a Chiral Active Particle (CAP), as initially proposed by Cruz et al. and show that decreasing motility (or aging) indeed causes the stretched exponential behavior.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。