Four-photon interference with asymmetric beam splitters |
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| Authors: | Liu B H Sun F W Gong Y X Huang Y F Guo G C Ou Z Y |
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| Affiliation: | Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, China. |
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| Abstract: | Two experiments of four-photon interference are performed with two pairs of photons from parametric downconversion with the help of asymmetric beam splitters. The first experiment is a generalization of the Hong-Ou-Mandel interference effect to two pairs of photons while the second one utilizes this effect to demonstrate a four-photon de Broglie wavelength of lambda/4 by projection measurement. |
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