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Conferences > QIM > 2012 > QM1A > QM1A.2

Multi-Photon Entanglement for Sub Shot-Noise Sensitivity

Christian Schwemmer, Roland Krischek, Witlef Wieczorek, Wiesław Laskowski, Philipp Hyllus, Luca Pezzé, Augusto Smerzi, and Harald Weinfurter

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Abstract

We experimentally demonstrate a general criterion to identify multi-photon entangled states useful for quantum metrology and prove their applicability for phase estimation with a sensitivity higher than the shot-noise limit.

© 2012 Optical Society of America

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