标题： 用于跑动和翻转粒子的最佳棘轮势 显示英文标题

标题： Optimal Ratchet Potentials for Run-and-Tumble particles

摘要： 趋化运动粒子，模仿像大肠杆菌这样的微生物的行为，是活性物质的一个典型模型。由于自我推进，它们的随机和无方向的运动可以在一个棘轮势中被整流。使用微扰场论，我们确定产生最大粒子流的势的形状，该形状作为粒子参数的函数。 显示英文摘要

摘要： Run-and-Tumble particles, mimicking the behaviour of microorganisms like E. coli, are a paradigmatic model of active matter. Due to self-propulsion, their random and undirected motion can be rectified in a ratchet potential. Using perturbative field theory, we determine the shape of the potential that produces the maximum particle current as a function of the particles' parameters.