Experiment on nonclassical fourth-order interference

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)2957-2965
Journal / PublicationPhysical Review A
Volume42
Issue number5
Publication statusPublished - 1990
Externally publishedYes

Abstract

A new fourth-order interference experiment has been carried out and analyzed theoretically in classical and in quantum terms. Two photons produced in the process of parametric down-conversion provide the two inputs to a Mach-Zehnder type of interferometer, while two photodetectors coupled to a coincidence counter measure the output. The coincidence rate, after subtraction of accidentals, exhibits a cosine variation with the optical path difference, in agreement with quantum mechanics, but in disagreement with a classical analysis. By contrast, when two coherent light beams from a He:Ne laser are used as inputs to the interferometer, no fourth-order interference is observed. © 1990 The American Physical Society.

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Citation Format(s)

Experiment on nonclassical fourth-order interference. / Ou, Z. Y.; Zou, X. Y.; Wang, L. J.; Mandel, L.

In: Physical Review A, Vol. 42, No. 5, 1990, p. 2957-2965.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review