Atom-Photon Entanglement

Details Atom-Photon Entanglement Atom-Photon Entanglement

2005-11-18

arxiv.org/abs/quant-ph/0511183v1

Physics

Quantum Physics

5 pages

Scientific paper

We report the observation of entanglement between a single trapped atom and a single photon at a wavelength suitable for low-loss communication over large distances, thereby achieving a crucial step towards long range quantum networks. To verify the entanglement we introduce a single atom state analysis. This technique is used for full state tomography of the atom-photon qubit-pair. The detection efficiency and the entanglement fidelity are high enough to allow in a next step the generation of entangled atoms at large distances, ready for a final loophole-free Bell experiment.

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