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Answer by glS for How to interpret photon number 'gates' in quantum circuit?

Working in the many-boson formalism is not that different than the more standard "gate-based" approach you might be more used to. The main difference is that the unitary operations technically act on...

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How to interpret photon number 'gates' in quantum circuit?

Peng et. al. Describe a circuit for entanglement cloning (i.e. entanglement broadcasting) which on its own looks fairly straightforward:Confusingly however, the gates $U_1$ and $U_2$ are not logical...

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