米拉·瓦勒里
2022-05-30 03:14:24
|ψ> dual vector <ψ|
A|ψ> dual vector <ψ|A†
(<ψ|)(|φ>) = <ψ|φ> = inner product
<ψ|φ> = <φ|ψ>*
然後一堆 let bra 可以任意駁埋分開
e.g.
<p|A|q> = (<p|A)|b> = <p|(A|q>)
(|a><b|)|c> = |a><b|c> = const c |a> 所以 |a><b| 係個將 |c> -> |a> 嘅 operator
完(?)