Superdense coding: Difference between revisions

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Encoding: The matrix Pauli along y-axis was wrong (minus sign inverted)
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:<math>|B_{10}\rangle = \frac{1}{\sqrt{2}}(|0_A0_B\rangle - |1_A1_B\rangle)</math>
 
4. If, instead, Alice wants to send the classical two-bit string 11 to Bob, then she applies the quantum gate <math>Z*X = iY = \begin{bmatrix} 0 & -1 \\ -1 & 0 \end{bmatrix} </math> to her qubit, so that the resultant entangled state becomes
 
:<math>|B_{11}\rangle = \frac{1}{\sqrt{2}}(|0_A1_B\rangle -|1_A0_B\rangle ) </math>