论文标题
限制活性流体中的力产生：微观结构的作用
Force generation in confined active fluids: The role of microstructure
论文作者
论文摘要
我们通过实验确定活性颗粒浴在被动探针上施加的力，这是其与壁的距离的函数，并将其与测量的探针周围活性颗粒的平均密度分布进行比较。在主动应力的框架内，我们证明了这两个量都是直接相互关联的。我们的结果与最小的数值模型非常吻合，并确认了活性颗粒和传输力之间的一般和系统独立的关系。
We experimentally determine the force exerted by a bath of active particles onto a passive probe as a function of its distance to a wall and compare it to the measured averaged density distribution of active particles around the probe. Within the framework of an active stress, we demonstrate that both quantities are - up to a factor - directly related to each other. Our results are in excellent agreement with a minimal numerical model and confirm a general and system-independent relationship between the microstructure of active particles and transmitted forces.
