Experimental high-intensity three-photon entangled source

Huai-Xin Lu; Jun Zhang; Xiao-Qin Wang; Ying-De Li; Chun-Yan Wang

doi:10.1103/PhysRevA.78.033819

Experimental high-intensity three-photon entangled source

Quantum Physics 2008-09-16 v1

Authors: Huai-Xin Lu , Jun Zhang , Xiao-Qin Wang , Ying-De Li , Chun-Yan Wang

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Abstract

We experimentally realize a high-intensity three-photon Greenberger-Horne-Zeilinger (GHZ) entanglement source directly following the proposal by Rarity and Tapster [J. G. Rarity and P. R. Tapster, Phys. Rev. A 59, R35 (1999)]. The threefold coincidence rate can be more than 200 Hz with a fidelity of 0.811, and the intensity can be further improved with moderate fidelity degradation. The GHZ entanglement is characterized by testing the Bell-Mermin inequality and using an entanglement witness operator. To optimize the polarization-entangled source, we theoretically analyze the relationship between the mean photon number of the single-photon source and the probability of parametric down-conversion.

Keywords

bell inequality quantum entanglement

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@article{arxiv.0809.2588,
  title  = {Experimental high-intensity three-photon entangled source},
  author = {Huai-Xin Lu and Jun Zhang and Xiao-Qin Wang and Ying-De Li and Chun-Yan Wang},
  journal= {arXiv preprint arXiv:0809.2588},
  year   = {2008}
}

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4 pages, 4 figures

Experimental high-intensity three-photon entangled source

Abstract

Keywords

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