New answers tagged deutsch-jozsa-algorithm
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How is this step performed in Deutsch's algorithm?
The key point here is that the query oracle $U_f$ is a linear transformation.
Linearity means, if $|x\rangle = \alpha|0\rangle+\beta|1\rangle$, then
$$U_f|x\rangle|y\rangle=U_f(\alpha|0\rangle+\beta|1\...
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