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Quantum diffraction and interference of spatially correlated photon pairs and its Fourier-optical analysis

Ryosuke Shimizu·Keiichi Edamatsu·Tadashi Itoh
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Abstract

We present one- and two-photon diffraction and interference experiments involving parametric down-converted photon pairs. By controlling the divergence of the pump beam in parametric down-conversion, the diffraction-interference pattern produced by an object changes from a quantum (perfectly correlated) case to a classical (uncorrelated) one. The observed diffraction and interference patterns are accurately reproduced by Fourier-optical analysis taking into account the quantum spatial correlation. We show that the relation between the spatial correlation and the object size plays a crucial role in the formation of both one- and two-photon diffraction-interference patterns.

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Ryosuke Shimizu, Keiichi Edamatsu, Tadashi Itoh. 2006-05-25. Quantum diffraction and interference of spatially correlated photon pairs and its Fourier-optical analysis. https://doi.org/10.1103/physreva.74.013801

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