论文标题
惯性的自属性颗粒
Inertial self-propelled particles
论文作者
论文摘要
我们研究了一个自构的粒子在溶剂中移动的溶剂，该粒子在失败的状态下具有活跃的Ornstein Uhlenbeck动力学，以评估惯性的影响。我们专注于潜在的和谐波限制不足的活性颗粒的性质，研究单粒子轨迹如何修改阻力系数的不同值。在这两种情况下，我们都在相关矩阵和稳态概率分布函数方面解决了动力学，从而揭示了速度和主动力之间的显式相关性。我们还评估了惯性对系统时间依赖性特性的影响，讨论了均方根位移以及粒子位置和速度的时间相关。特别关注的是研究病毒活性压力的研究，揭示了惯性在可观察到的作用上。
We study a self-propelled particle moving in a solvent with the active Ornstein Uhlenbeck dynamics in the underdamped regime to evaluate the influence of the inertia. We focus on the properties of potential-free and harmonically confined underdamped active particles, studying how the single-particle trajectories modify for different values of the drag coefficient. In both cases, we solve the dynamics in terms of correlation matrices and steady-state probability distribution functions revealing the explicit correlations between velocity and active force. We also evaluate the influence of the inertia on the time-dependent properties of the system, discussing the mean square displacement and the time-correlations of particle positions and velocities. Particular attention is devoted to the study of the Virial active pressure unveiling the role of the inertia on this observable.
