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  • CLEO/Europe and IQEC 2007 Conference Digest
  • (Optica Publishing Group, 2007),
  • paper IC2_1

Atom-Photon Entanglement in a Cavity

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Abstract

Creating entanglement between distant nodes of a quantum network is a major task in quantum information processing. Deterministic creation of atom-photon entanglement would be a big step towards this aim since photons can travel large distances without decoherence. Entanglement swapping between two such atom-photon pairs should be a feasible way to entangle two distant atoms and thus realise a quantum repeater. So far, all atom-photon entanglement schemes that have been demonstrated [1] are plagued by low event rates due to poor photon collection efficiencies. Therefore the anticipated entanglement swapping is hard to achieve. To overcome these limitations, atom-cavity systems could be used, since their overall efficiency can be several orders of magnitude higher than in free-space schemes [2]. Here, we show a way to achieve entanglement in a strongly coupled atom-cavity system.

© 2007 IEEE

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