Eliminating inertia in a stochastic model of a micro-swimmer with constant speed
作者： S. Milster , J. Nötel , I. M. Sokolov , L. Schimansky-Geier
DOI: 10.1140/EPJST/E2017-70052-8
关键词: Limit (mathematics) 、 Stochastic differential equation 、 Mathematical analysis 、 Variable (mathematics) 、 Physics 、 Stochastic modelling 、 Adiabatic process 、 Inertia 、 Classical mechanics 、 Orientation (geometry) 、 Position (vector)
摘要: We are concerned with the dynamical description of motion a stochastic micro-swimmer constant speed and fluctuating orientation in long time limit by adiabatic elimination orientational variable. Starting corresponding full set Langevin equations, we eliminate memory obtain equation for position alone overdamped limit. An equivalent procedure based on Fokker-Planck is presented as well.
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