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How to modify the quantum circuit to do superdense coding with the state $|00\rangle-|11\rangle$?

In order to encode two bits $x, z\in\{0,1\}$ using vanilla superdense coding protocol, we apply two Paulis to one of the qubits in a Bell pair \begin{align} |\beta_{zx}\rangle=(Z^zX^x\otimes I)|\beta_{...
Adam Zalcman's user avatar
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How to modify the quantum circuit to do superdense coding with the state $|00\rangle-|11\rangle$?

It could be, yes, depending on whether you want the sender or the receiver to adjust their part of the protocol. Either of them applying a $Z$ gate to their half of the pair before proceeding with the ...
Mariia Mykhailova's user avatar

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