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arXiv · 1603.06938

Local sampling of the Wigner function at telecom wavelength with loss-tolerant detection of photon statistics

G. Harder·Ch. Silberhorn·J. Rehacek·Z. Hradil·L. Motka·B. Stoklasa·L. L. Sanchez-Soto
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Abstract

We report the experimental point-by-point sampling of the Wigner function for nonclassical states created in an ultrafast pulsed type-II parametric down-conversion source. We use a loss-tolerant time-multiplexed detector based on a fiber-optical setup and a pair of photon-number-resolving avalanche photodiodes. By capitalizing on an expedient data-pattern tomography, we assess the properties of the light states with outstanding accuracy. The method allows us to reliably infer the squeezing of genuine two-mode states without any phase reference.

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G. Harder, Ch. Silberhorn, J. Rehacek, Z. Hradil, L. Motka, B. Stoklasa, L. L. Sanchez-Soto. 2016-03-22. Local sampling of the Wigner function at telecom wavelength with loss-tolerant detection of photon statistics. https://doi.org/10.1103/physrevlett.116.133601

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