论文标题
在存在障碍的情况下,疾病在手性游泳者运动中的作用
The role of disorder in the motion of chiral swimmers in the presence of obstacles
论文作者
论文摘要
障碍物的存在被直观地期望阻止微弹药机的扩散运输。然而,对于手性微晶状体,由于障碍物对手性运动的纠正,表面附近的低密度可以增强其扩散行为。在这里,我们从数值上研究了障碍在确定手性微温晶体器在具有障碍物表面上的手性微晶状体的运输动力学方面所起的作用。我们考虑定期间隔的障碍物和不同类型的疾病的密度不同:微型运动员动力学中的噪声,障碍物位置的淬火噪声以及障碍物大小的多分散性。我们表明,根据疾病的类型和强度,障碍物的存在可以增强或阻碍运输,并讨论对无序介质中主动运输的影响的影响。
The presence of obstacles is intuitively expected to hinder the diffusive transport of micro-swimmers. However, for chiral micro-swimmers, a low density of obstacles near a surface can enhance their diffusive behavior, due to the rectification of the chiral motion by the obstacles. Here, we study numerically the role that disorder plays in determining the transport dynamics of chiral micro-swimmers on surfaces with obstacles. We consider different densities of regularly spaced obstacles and distinct types of disorder: noise in the dynamics of the micro-swimmer, quenched noise in the positions of the obstacles as well as obstacle size polydispersity. We show that, depending on the type and strength of the disorder, the presence of obstacles can either enhance or hinder transport, and discuss implications for the control of active transport in disordered media.