Further evidence of nonclassical behavior in optical interference
- 19 June 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 62 (25) , 2941-2944
- https://doi.org/10.1103/physrevlett.62.2941
Abstract
It is demonstrated in a photon coincidence experiment with two photodetectors, in which signal and idler photons produced by parametric down-conversion are allowed to interfere, that the visibility of the interference pattern is well above 50% and remains unchanged when one of the two light beams is attenuated ninefold compared with the other. These results violate classical probability for light waves.Keywords
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