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arXiv · 1310.4733

Heralded generation of Bell states using atomic ensembles

David Shwa·Raphael D. Cohen·Alex Retzker·Nadav Katz
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Abstract

We propose a scheme that utilizes the collective enhancement of a photonic mode inside an atomic ensemble together with a proper Zeeman manifold in order to achieve a heralded polarization entangled Bell state. The entanglement is between two photons that are separated in time and can be used as a post selected deterministic source for applications such as quantum repeaters where a subsequent entanglement swapping measurement is employed. We present a detailed analysis of the practical limitation of the scheme.

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David Shwa, Raphael D. Cohen, Alex Retzker, Nadav Katz. 2013-10-17. Heralded generation of Bell states using atomic ensembles. https://doi.org/10.1103/physreva.88.063844

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