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arXiv · 1506.01682

Efficient two-photon polarization entanglement detection by Bell state analysis

Brian P. Williams·Travis S. Humble
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Abstract

We emphasize the Bell state analyzer, a beamsplitter, as an efficient means of detecting two-photon polarization entanglement. Whereas the optimal entanglement witness for spatially separated photons requires coordinated measurement in three bases, the local Bell state analyzer enables an efficient entanglement witness in a single polarization basis. We use Bayesian mean estimation to compare the efficiency of these two witnesses. We report the method and results of this comparison.

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Brian P. Williams, Travis S. Humble. 2015-06-04. Efficient two-photon polarization entanglement detection by Bell state analysis. https://arxiv.org/abs/1506.01682

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