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arXiv · 0911.5308

NOON states from cavity-enhanced down-conversion: High quality and super-resolution

Florian Wolfgramm·Alessandro Cere·Morgan W. Mitchell
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Abstract

Indistinguishable photons play a key role in quantum optical information technologies. We characterize the output of an ultra-bright photon-pair source using multi-particle tomography [R. B. A. Adamson et al., Phys. Rev. Lett. 98, 043601 (2007)] and separately identify coherent errors, decoherence, and distinguishability. We demonstrate generation of high-quality indistinguishable pairs and polarization NOON states with 99% fidelity to an ideal NOON state. Using a NOON state we perform a super-resolving angular measurement with 90% visibility.

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Florian Wolfgramm, Alessandro Cere, Morgan W. Mitchell. 2009-11-27. NOON states from cavity-enhanced down-conversion: High quality and super-resolution. https://doi.org/10.1364/josab.27.000a25

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