Abstract

The simplicity of a question, such as wondering whether or not correlations characterize a certain system, collides with the experimental difficulty of accessing such information. Here we present a low-demanding experimental approach that refers to the use of a metrology scheme to obtain a conservative estimate of the strength of frequency correlations. Our test bed is the widespread case of a photon pair produced per downconversion. The theoretical architecture used to put the correlation degree on a quantitative ground is also described.

© 2018 Optical Society of America

Arbitrary shaping of biphoton correlations using near-field frequency-to-time mapping

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Stimulated emission tomography: beyond polarization

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Experimental three-party quantum random number generator based on dimension witness violation and weak measurement

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Photon pair generation with tailored frequency correlations in graded-index multimode fibers

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Measuring different types of transverse momentum correlations in the biphoton’s Fourier plane

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