Violation of Bell's Inequality over 4 km of Optical Fiber
- 3 October 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (14), 1923-1926
- https://doi.org/10.1103/physrevlett.73.1923
Abstract
Using energy correlated photon pairs created in parametric down-conversion we demonstrate two-photon interference effects in fiber interferometers separated by 4.3 km of optical fiber. The measured 86% interference visibilities confirm the purely quantum mechanical origin of these correlations.Keywords
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