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Conference on Lasers and Electro-Optics

Observation of Young's double-slit interference with the three-photon N00N state

Kim, Kwon, Lee, Choi Choi, Park

Published Jan 1, 2011• 0 citations
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Spatial interference of quantum mechanical particles exhibits a fundamental feature of quantum mechanics. A two-mode entangled state of N particles known as N00N state can give rise to non-classical interference. We report the first experimental observation of a three-photon N00N state exhibiting Young's double-slit type spatial quantum interference. Compared to a single-photon state, the three-photon entangled state generates interference fringes that are three times denser. Moreover, its interference visibility of 0.49 ± 0.09 is well above the limit of 0.1 for spatial super-resolution of classical origin.