论文标题
在二维接口处有源流体中稳定的远程单轴顺序
Stable long-range uniaxial order in active fluids at two-dimensional interfaces
论文作者
论文摘要
我表明，如果允许使用环境三维流体的颗粒和动量交换颗粒和动量，则活性流体膜中的二维列表可以保持稳定且远。支持膜具有不稳定，其增长最快的模式独立于高活动或低浓度下的活动。即使电影中的游泳者数量保守，运动性也可以在此类浸没的表面上稳定远程极性。沉浸式表面中的主动排序比以前预期的要丰富得多，对主动运输带来了功能后果，并表明对当前和将来的实验中参数的更广泛探索将显示此处预测的新功能。
I show that two-dimensional nematic order in an active fluid film can be stable and long-ranged if exchange of particles and momentum with an ambient three-dimensional fluid is allowed. Number-conserving films present an instability, with a fastest-growing mode independent of activity at high activities or low concentrations. Motility can stabilize long-range polar order on such immersed surfaces even when the swimmer number in the film is conserved. Active ordering in immersed surfaces is much richer than previously expected, with functional consequences for active transport, and suggests that a broader exploration of parameters in current and future experiments would display the new features predicted here.
