24/08/21 19:26:35.00 .net
ランダウの量子力学で
If the function Ψ were not normalized, then the relation (3.3) would not hold either. The sum Σ |an|^2 would then be given by some expression bilinear in Ψ and Ψ*, and becoming unity when Ψ was normalized. Only the integral ∫ ΨΨ* dq is such an expression. Thus the equation (3.4) must hold.
って書いてあるんだけど、なんで
The sum Σ |an|^2 would then be given by some expression bilinear in Ψ and Ψ*
って言えるの？