论文标题
活跃湍流中的结合自行拓扑缺陷
Binding self-propelled topological defects in active turbulence
论文作者
论文摘要
我们报告了活跃神灵的单层中稳定的自行界限缺陷的出现，这些缺陷以涡流和紫色的形式形成虚拟的全英式拓扑缺陷。通过数值模拟和分析参数，我们确定了活跃的nematic单层中结合缺陷形成的相位空间。结果表明，主动应力的性质与活动粒子的流动对齐行为之间的复杂协同作用可以稳定自propell的正构成半固有缺陷的运动到特定的结构中。我们的发现揭示了主动nematics中的新复杂性，具有触发新的实验和理论的潜力。
We report on the emergence of stable self-propelled bound defects in monolayers of active nematics, which form virtual full-integer topological defects in the form of vortices and asters. Through numerical simulations and analytical arguments, we identify the phase-space of the bound defect formation in active nematic monolayers. It is shown that an intricate synergy between the nature of active stresses and the flow-aligning behaviour of active particles can stabilise the motion of self-propelled positive half-integer defects into specific bound structures. Our findings uncover new complexities in active nematics with potential for triggering new experiments and theories.
