标题： 刚性环和柔性环混合物中活性粒子的迁移 显示英文标题

标题： Migration of active particle in mixtures of rigid and flexible rings

摘要： 活性粒子在缓慢移动、拥挤和异质介质中的迁移是各种生物过程和技术应用的基础，例如货物运输。 在本研究中，我们数值研究了由刚性环和柔性环混合组成的介质中单个活性粒子的动力学。 我们观察到扩散系数相对于刚性环与柔性环的相对比例的非单调依赖关系，从而确定了增强扩散的最佳组成。 这种长时间的非单调扩散，可能是由于活性粒子对刚性环和柔性环的不同响应所致，同时伴随着短暂的短时间捕获。 捕获持续时间的概率分布可以用扩展的熵陷阱模型很好地描述。 我们进一步建立了粒子活性与扩散最佳刚性-柔性环比之间的普遍关系，这与我们的数值结果高度一致。 显示英文摘要

摘要： The migration of active particles in slowly moving, crowded, and heterogeneous media is fundamental to various biological processes and technological applications, such as cargo transport. In this study, we numerically investigate the dynamics of a single active particle in a medium composed of mixtures of rigid and flexible rings. We observe a non-monotonic dependence of diffusivity on the relative fraction of rigid to flexible rings, leading to the identification of an optimal composition for enhanced diffusion. This long-time non-monotonic diffusion, likely resulting from the different responses of the active particle to rigid and flexible rings, is coupled with transient short-time trapping. The probability distribution of trapping durations is well described by the extended entropic trap model. We further establish a universal relationship between particle activity and the optimal rigid-to-flexible ring ratio for diffusion, which aligns closely with our numerical results.