福克-普朗克方程（Fokker–Planck equation）描述粒子在势能场中受到随机力后，随时间演化的位置或是速度的分布函数。此方程以荷兰物理学家阿德历安·福克与马克斯·普朗克的姓氏来命名。
同时。福克-普朗克方程中包括了描述尾部电子约束的项。
Also, a term describing the confinement of electron tail is included in the Fokker-Planck equation.
本文讨论了福克-普朗克方程的两种基本解法，即本征函数展开和路径积分方法。
Two basic methods of solution of the Fokker-Planck equation, i. e. the method of the representation of eigenfunction and that of the path integral, are discussed.
应用以上得到的一般福克-普朗克方程，推得了双模激光系统的福克-普朗克方程。
With GFPE, the Fokker Planck equation (FPE) for a two mode laser driven by correlated Gaussian white noises is then derived.
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