Loss-tolerant state engineering for quantum-enhanced metrology via the reverse Hong–Ou–Mandel effect

N00N states are promising for quantum communications and metrology, but are vulnerable to losses. Here the authors develop a technique for preparing high-fidelity two-photon N00N states in a loss-free fashion, and demonstrate enhanced phase sensitivity without requiring recombination.

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Auteurs principaux: Alexander E. Ulanov, Ilya A. Fedorov, Demid Sychev, Philippe Grangier, A. I. Lvovsky
Format: article
Langue:EN
Publié: Nature Portfolio 2016
Sujets:
Q
Accès en ligne:https://doaj.org/article/7fe3c0135a334b9baa5cfc14b66908b6
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Résumé:N00N states are promising for quantum communications and metrology, but are vulnerable to losses. Here the authors develop a technique for preparing high-fidelity two-photon N00N states in a loss-free fashion, and demonstrate enhanced phase sensitivity without requiring recombination.