Answer by keisuke.akira for What experiments can distinguish between mixed...
So basically you want to distinguish the state $| + \rangle \langle + | $ from the dephased state $\frac{1}{2}(| 0 \rangle \langle 0 | + | 1 \rangle \langle 1 | ) = \frac{\mathbb{I}}{2}$.Here's a...
View ArticleWhat experiments can distinguish between mixed and pure states?
To distinguish between a coherent and de-cohered stage of the same systemwhat experiments can provide the answer? The term Experiment is used here in the Bohr-Einstein-debate sense, a realizable...
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