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Line 24: The protocol starts with the preparation of an entangled state, which is later shared between Alice and Bob. For example, the following [[Bell state]] :<math>⟨⟨\|\Phi ^{+}\rangle = \frac{1}{\sqrt{2}} (\|0\rangle_A \otimes \|0\rangle_B + \|1\rangle_A \otimes \|1\rangle_B)</math> is prepared, where <math>\otimes </math> denotes the [[tensor product]]. In common usage the tensor product symbol <math>\otimes</math> may be omitted:

Superdense coding: Difference between revisions