File talk:Cnotsupernot2.png

Thanks for this example, but I think the expanded intermediate representations may be incorrect. For example, on the second, $$|01\rangle$$ case, after the first Hadamard the article has $$\frac{1}{\sqrt{2}}(|00\rangle - |01\rangle + |10\rangle - |11\rangle)$$ (the picture has $$\frac{1}{\sqrt{2}}(|00\rangle + |10\rangle - |00\rangle - |11\rangle)$$, I think the second $$|00\rangle$$ should be $$|01\rangle$$ in the third term) and after the CNOT the article has $$\frac{1}{\sqrt{2}}(|00\rangle - |01\rangle + |11\rangle - |10\rangle)$$ to the picture's $$\frac{1}{\sqrt{2}}(|00\rangle + |11\rangle - |01\rangle - |11\rangle)$$ (again, I think the last $$|11\rangle$$ term should be $$|10\rangle$$). There's a very good chance I misunderstood something, but wanted to check. This gate already confuses me enough without conflicting info :) nlowry (talk) 14:05, 15 October 2019 (UTC)