布朗粒子运动的位移分布推导

摘要

The complete and specific derivation for the displacement distribution of brownian motion is seldom found, and in this paper three derivation methods are provided in detail.%详细而系统地推导作布朗运动粒子的位移分布的资料很鲜见,基于此,本文用三种方法对其作了完整的推导.