论文标题
主动和被动列表缺陷的定向相关性
Orientational correlations in active and passive nematic defects
论文作者
论文摘要
我们研究了活性列液晶中+1/2脱节之间的定向顺序的出现。使用理论和实验方法的组合，我们表明+1/2脱节具有短距离抗磁磁对齐，这是由于弹性扭矩起源于其极性结构。然而，中间-1/2脱节的存在将这种相互作用从抗调整转变为比对齐的尺度对齐，比符号缺陷之间的典型距离小。未观察到远程定向顺序。令人惊讶的是，这些作用对材料特性不敏感，并且在质量上与被动列液晶缺陷发现的作用相似。
We investigate the emergence of orientational order among +1/2 disclinations in active nematic liquid crystals. Using a combination of theoretical and experimental methods, we show that +1/2 disclinations have short-range antiferromagnetic alignment, as a consequence of the elastic torques originating from their polar structure. The presence of intermediate -1/2 disclinations, however, turns this interaction from anti-aligning to aligning at scales that are smaller than the typical distance between like-sign defects. No long-range orientational order is observed. Strikingly, these effects are insensitive to material properties and qualitatively similar to what is found for defects in passive nematic liquid crystals.
