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arXiv · 1704.07590

Experimental characterization of photon-number noise in Rarity-Tapster type interferometers

Vojtěch Trávníček·Karol Bartkiewicz·Antonín Černoch·Karel Lemr
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Abstract

In this paper, we develop a simple model describing inherent photon-number noise in Rarity-Tapster type interferometers. This noise is caused by generating photon pairs in the process of spontaneous parametric down-conversion and adding a third photon by attenuating fundamental laser mode to single-photon level. We experimentally verify our model and present resulting signal to noise ratios as well as obtained three-photon generation rates as functions of various setup parameters. Subsequently we evaluate impact of this particular source of noise on quantum teleportation which is a key quantum information protocol using this interferometric configuration.

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Vojtěch Trávníček, Karol Bartkiewicz, Antonín Černoch, Karel Lemr. 2017-04-25. Experimental characterization of photon-number noise in Rarity-Tapster type interferometers. https://doi.org/10.1103/physreva.96.023847

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