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Paper detail

An All Optical Fibre Quantum Controlled-NOT Gate

We report the first experimental demonstration of an optical controlled-NOT gate constructed entirely in fibre. We operate the gate using two heralded optical fibre single photon sources and find an average logical fidelity of 90% and an average process fidelity of 0.83<F<0.91. On the basis of a simple model we are able to conclude that imperfections are primarily due to the photon sources, meaning that the gate itself works with very high fidelity.

preprint2008arXivOpen access
Alex S. ClarkJeremie FulconisJohn G. RarityWilliam J. WadsworthJeremy L. O&#39;Brien
quant-ph
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Alex S. ClarkJeremie FulconisJohn G. RarityWilliam J. WadsworthJeremy L. O&#39;Brien

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