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Conference on Lasers and Electro-Optics

Deep tomography: Polarization-entangled photon pairs in technicolor

Bin Fang, Marco Liscidini, John E. Sipe, Virginia O. Lorenz

Published Jan 1, 2016• 0 citations
Publisher

Abstract

We realize the frequency-resolved reconstruction of the density matrix of polarization-entangled photon pairs by stimulated emission tomography. This approach enables deeper insight into the correlations between different degrees of freedom in the photon-pair source.
DOI
10.1364/cleo_qels.2016.fm2n.7

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We perform a multidimensional characterization of a polarization-entangled photon-pair source using stimulated emission tomography (SET). We measure the frequency-resolved polarization density matrix, which is composed of thousands of individual polarization density matrices, each corresponding to a different frequency pair. The measurement exhibits detailed information about correlations that would be difficult to observe using traditional quantum state tomography. This demonstration exhibits the power of SET to characterize a source of quantum states with multi-dimensional correlations and hyper-entanglement. The SET technique can be applied to a variety of photon-pair-based sources for the optimization and engineering of quantum states.
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