论文标题
强烈相互作用的活性液体结构的平均场理论
Mean-field theory for the structure of strongly interacting active liquids
论文作者
论文摘要
主动系统被局部非保守力驱动到平衡中，表现出具有独特的行为和结构，并具有潜在的新型材料设计的实用性。沿着这一目标的道路的一个重要且困难的挑战是准确预测活动系统的结构如何修改，因为它们的驱动力将其脱离了平衡。在这里，我们使用液态理论中的工具来应对经典的最小活动模型的挑战。首先，我们构建一个非平衡平均场框架，该框架可以预测弱相互作用粒子系统的结构。其次，是由平衡溶剂化理论的动机，我们修改了该理论，以惊人的高精度将其扩展到强烈相互作用的粒子系统，从而将其与大多数现有的类似可处理方法区分开。我们的结果提供了对强烈相互作用超平衡系统中空间组织的见解。
Active systems, which are driven out of equilibrium by local non-conservative forces, exhibit unique behaviors and structures with potential utility for the design of novel materials. An important and difficult challenge along the path towards this goal is to precisely predict how the structure of active systems is modified as their driving forces push them out of equilibrium. Here, we use tools from liquid-state theories to approach this challenge for a classic minimal active matter model. First, we construct a nonequilibrium mean-field framework which can predict the structure of systems of weakly interacting particles. Second, motivated by equilibrium solvation theories, we modify this theory to extend it with surprisingly high accuracy to systems of strongly interacting particles, distinguishing it from most existing similarly tractable approaches. Our results provide insight into spatial organization in strongly interacting out-of-equilibrium systems.
