Nonlinear Brownian motion - mean square displacement

Condensed Matter Physics

关键词: statistical mechanics;    Brownian motion;    nonlinear friction;    self-propelling;    Fokker-Planck equations;    mean square displacement;   

DOI  :  10.5488/CMP.7.3.539

来源: DOAJ

【 摘 要 】

The stochastic dynamics of self-propelled Brownian particles is studied by means of the Langevin and the Fokker-Planck approach. We model the driving by a nonlinear friction function which has a negative part at small velocities, leading to active Brownian motion of the particles. The mean square displacement is estimated analytically and compared with numerical simulations.

【 授权许可】

Unknown