论文标题
弹跳，追逐或暂停：活动液滴的不对称碰撞
Bouncing, chasing or pausing: asymmetric collisions of active droplets
论文作者
论文摘要
化学活性液滴表现出复杂的避免轨迹。尽管在积极的物质实验中不可避免地异质性，但它们的建模大多被忽略了。利用其几何简单性，我们充分弥补了不同半径的两个游泳液滴的正面碰撞，并证明即使在大小上也有很小的对比度，重视它们的碰撞和随后的动态。我们确定了三个基本不同的制度。结果对成对碰撞的高灵敏度有望深远影响其集体动态。
Chemically-active droplets exhibit complex avoiding trajectories. While heterogeneity is inevitable in active matter experiments, it is mostly overlooked in their modelling. Exploiting its geometric simplicity, we fully-resolve the head-on collision of two swimming droplets of different radii and demonstrate that even a small contrast in size critically conditions their collision and subsequent dynamics. We identify three fundamentally-different regimes. The resulting high sensitivity of pairwise collisions is expected to profoundly affect their collective dynamics.
