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Conferences > CLEOPR > 2018 > Th4J > Th4J.1

Unconditional Shot-noise-limit Violation in Photonic Quantum Metrology

G. J. Pryde, S. Slussarenko, M.M. Weston, H.M. Chrzanowski, L.K. Shalm, V.B. Verma, and S.W. Nam

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Abstract

We demonstrate the first unconditional violation of the shot noise limit in photonic NOON-state interferometry. Using ultrahigh-efficiency source and detectors we outperform ideal classical measurement without employing postselection, or correction for loss and imperfections.

© 2018 The Author(s)

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