对N电子波函数Ψ, ρ(q)=N∫|Ψ|~2dσ_1dν_2dσ_2…dν_Ndσ_N表示在q处发现一个任意自旋(σ_i是自旋变量)的电子的几率密度,称为电子几率密度(电子密度、电荷密 Ρ (q) = N∫ | Ψ | ~ 2dσ_1dν_2dσ_2 ... dν_Ndσ_N for the N electron wave function Ψ means the probability density of an electron that finds an arbitrary spin (σ_i is a spin variable) at q, called the electron probability density (electron Density, charge density