期刊
OPTICS EXPRESS
卷 21, 期 20, 页码 23241-23249出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.21.023241
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We report the distribution of time-bin entangled photon pairs over 300 km of optical fiber. We realized this by using a high-speed and high signal-to-noise ratio entanglement generation/evaluation setup that consists of periodically poled lithium niobate waveguides and superconducting single photon detectors. The observed two-photon interference fringes exhibited a visibility of 84%. We confirmed the violation of Bell's inequality by 2.9 standard deviations. (C) 2013 Optical Society of America
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