One could formalize the following result: for any quantum states ∣ψ⟩|\psi\rangle∣ψ⟩, ∣φ⟩|\varphi\rangle∣φ⟩, there exists a unitary matrix UUU such that U∣ψ⟩=∣φ⟩U|\psi\rangle = |\varphi\rangleU∣ψ⟩=∣φ⟩.
Last updated: Oct 05 2026 at 16:54 UTC
Anthony Bordg (Oct 17 2019 at 17:27): Anthony Bordg (Oct 17 2019 at 17:27):