Direct observation of non-classical photon statistics in parametric downconversion

Abstract

We employ a high quantum efficiency photon number counter to determine the photon number distribution of the output field from a parametric downconverter. The raw photocount data directly demonstrates that the source is nonclassical by forty standard deviations, and correcting for the quantum efficiency yields a direct observation of oscillations in the photon number distribution.

References in corpus (1)

• Photon-number superselection and the entangled coherent-state representation

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