Run-and-tumble particles with hydrodynamics: sedimentation, trapping and upstream swimming

狭缝状约束下的最优奔跑-翻滚（run-and-tumble）运动

Optimal run-and-tumble in slit-like confinement

该研究针对狭缝约束下平行边界的输运研究不足的问题，提出可解的离散方向奔跑-翻滚模型得到精确扩散系数，经模拟验证可近似连续方向情况，并找出扩散最大化条件及细菌最优奔跑长度规律。

通过随机重定向合成活性布朗粒子来模拟微生物的奔跑-翻滚及趋向运动

Emulating microbial run-and-tumble and tactic motion by stochastically reorienting synthetic active Brownian particles

本研究提出随机取向重置协议，通过重置锥角宽度和速率调控，使活性布朗粒子模拟大肠杆菌奔跑-翻滚及趋化运动，并经实验、模拟和理论验证其广泛速度范围内的鲁棒性。

Run-and-tumble bacteria slowly approaching the diffusive regime

The run-and-tumble (RT) dynamics followed by bacterial swimmers gives rise first to a ballistic motion due to their persistence, and later, through consecutive tumbles, to a diffusive process. Here we investigate how long it takes for a dilute swimmer suspension to reach the diffusive regime as well as what is the amplitude of the deviations from the diffusive dynamics. A linear time dependence of the mean-squared displacement (MSD) is insufficient to characterize diffusion and thus we also focus on the excess kurtosis of the displacement distribution. Four swimming strategies are considered: …

莱茵衣藻机器人模拟中跑-翻滚类动力学的自发涌现：实验与理论

Spontaneous Emergence of Run-and-Tumble-Like Dynamics in a Robotic Analog of \textit{Chlamydomonas}: Experiment and Theory

本研究通过刚性杆连接的干燥自推进机器人模拟莱茵衣藻，发现系统自发涌现类跑-翻滚动力学，并通过理论模型揭示其物理机制，为微游动者运动提供新见解。

基于遭遇的run-and-tumble粒子模型II：粘性边界处的吸收

Encounter-based model of a run-and-tumble particle II: absorption at sticky boundaries

本文提出一个基于遭遇的run-and-tumble粒子模型，研究其在粘性边界上的吸收过程，通过占据时间阈值和边值问题求解，并推广至非指数分布及非对称吸收。

Active Matter Ratchets with an External Drift

When active matter particles such as swimming bacteria are placed in an asymmetric array of funnels, it has been shown that a ratchet effect can occur even in the absence of an external drive. Here we examine active ratchets for two dimensional arrays of funnels or L-shapes where there is also an externally applied dc drive or drift. We show that for certain conditions, the ratchet effect can be strongly enhanced, and that it is possible to have conditions under which run-and-tumble particles with one run length move in the opposite direction from particles with a different run length. For the…