作者: Z. Y. Ou , X. Y. Zou , L. J. Wang , L. Mandel
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摘要: A new fourth-order interference experiment has been carried out and analyzed theoretically in classical quantum terms. Two photons produced the process of parametric down-conversion provide two inputs to a Mach-Zehnder type interferometer, while photodetectors coupled coincidence counter measure output. The rate, after subtraction accidentals, exhibits cosine variation with optical path difference, agreement mechanics, but disagreement analysis. By contrast, when coherent light beams from He:Ne laser are used as no is observed.