论文标题
自发稳定的羊群柔性活性物质的旋转
Spontaneous stable rotation of flocking flexible active matter
论文作者
论文摘要
在自然界中，当蠕虫或狗等活性物质涌向不受管制和不受限制的表面上的同一食物来源时，它们倾向于自发形成稳定的旋转簇。 {In this paper we present an $n$-node flexible active matter model to study the collective motion due to the flocking of individual agents on a two-dimensional surface, and confirm that there exists a spontaneous stable cluster rotation synchronizing with a chirality produced by the alignment of their bodies under the impetus of the active force.} A prefactor of 1.86 is obtained for the linear relationship between normalized angular速度和手性。发现这种旋转的角速度取决于个体的柔韧性，每个个体的节点数量以及活性力的大小。结论很好地解释了在许多灵活的活动物质中存在的簇的自发稳定旋转，例如蠕虫或{狗}，当它们涌向同一单一来源时。
In nature, active matter, such as worms or dogs, tend to spontaneously form a stable rotational cluster when they flock to the same food source on an unregulated and unconfined surface. {In this paper we present an $n$-node flexible active matter model to study the collective motion due to the flocking of individual agents on a two-dimensional surface, and confirm that there exists a spontaneous stable cluster rotation synchronizing with a chirality produced by the alignment of their bodies under the impetus of the active force.} A prefactor of 1.86 is obtained for the linear relationship between normalized angular velocity and chirality. The angular velocity of such a rotation is found to be dependent on the individual flexibility, the number of nodes in each individual, and the magnitude of the active force. The conclusions well explain the spontaneous stable rotation of clusters that exists in many flexible active matter, like worms or {dogs}, when they flock to the same single source.
