Talk:Deferred measurement principle

The figure that has \ket{Phi} in it is confusing
It doesn't make sense to have $\ket{\Phi}_A^+$ and $\ket{\Phi}_B^+$ as separate states because the Bell state is entangled. Strictly speaking, the marginal states are maximally mixed, so the diagram is wrong. Also, the superscript $+$ should be in the ket, not outside it. 132.163.12.37 (talk) 22:08, 26 June 2023 (UTC)