Heralded generation of Bell states using atomic ensembles

David Shwa*, Raphael D. Cohen, Alex Retzker, Nadav Katz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We propose a scheme that utilizes the collective enhancement of a photonic mode inside an atomic ensemble together with a proper Zeeman manifold 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 postselected 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.

Original languageAmerican English
Article number063844
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume88
Issue number6
DOIs
StatePublished - 26 Dec 2013

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