论文标题
集体效果和图案形成，用于磁盘的定向锁定磁盘通过障碍物阵列
Collective Effects and Pattern Formation for Directional Locking of Disks Moving Through Obstacle Arrays
论文作者
论文摘要
我们检查了通过驱动角度从零旋转到九十度的磁阵列的磁盘组装中的定向锁定效果。为了增加磁盘密度，该系统沿着某些锁定方向表现出一系列不同的动态模式，包括一维或多行链相和密度调制阶段。对于非锁定驱动方向，磁盘形成无序模式或簇。当障碍物很小或相距很小时，会出现大量的锁定阶段。但是，随着磁盘数量的增加，由于磁盘和障碍物之间的碰撞频率的增加，可能的锁定阶段的数量下降。对于密集的阵列或大障碍物，我们发现堵塞效果增加，其中固定和移动磁盘共存。
We examine directional locking effects in an assembly of disks driven through a square array of obstacles as the angle of drive rotates from zero to ninety degrees. For increasing disk densities, the system exhibits a series of different dynamic patterns along certain locking directions, including one-dimensional or multiple row chain phases and density modulated phases. For non-locking driving directions, the disks form disordered patterns or clusters. When the obstacles are small or far apart, a large number of locking phases appear; however, as the number of disks increases, the number of possible locking phases drops due to the increasing frequency of collisions between the disks and obstacles. For dense arrays or large obstacles, we find an increased clogging effect in which immobile and moving disks coexist.
