标题： Ornstein-Uhlenbeck 信息游泳者具有外部和内部反馈控制 显示英文标题

标题： Ornstein-Uhlenbeck information swimmers with external and internal feedback controls

摘要： 使用欠阻尼主动Ornstein-Uhlenbeck粒子，我们提出了两种具有外部或内部反馈控制的信息游泳者模型，并对其进行了数值模拟。 根据每隔固定时间间隔（测量时间）后测得的速度，外部控制模型中摩擦系数会被修改，而内部控制模型中活动的持续时间则会被改变。 在稳态下，这两种信息游泳者在噪声环境中都能获得有限的平均速度，并且通过调整测量时间可以最大化效率。 内部控制的游泳者更接近生物系统，并且通常比外部控制模型获得更大的平均速度和效率。 显示英文摘要

摘要： Using an underdamped active Ornstein-Uhlenbeck particle, we propose two information swimmer models having either external or internal feedback control and perform their numerical simulations. Depending on the velocity that is measured after every fixed time interval (measurement time), the friction coefficient is modified in the externally controlled model, whereas the persistence time for the activity is changed in the internally controlled one. In the steady state, both of these information swimmers acquire finite average velocities in the noisy environment, and the efficiency can be maximized by tuning the measurement time. The internally controlled swimmer is more relevant to biological systems and can generally achieve larger average velocity and efficiency than the externally controlled model.