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news:20110113-1025-storage_of_entanged_photons_in_a_crystal [2011/07/11 11:25]
mafzelius [In the media]
news:20110113-1025-storage_of_entanged_photons_in_a_crystal [2019/03/16 19:54] (current)
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 The results of the experiment are threefold. It demonstrates,​ for the first time, the successful storage of heralded single photons in a solid-state memory with storage-and-retrieval efficiencies surpassing 20% for the shortest storage time of 25ns. Additionally,​ we show that the non-classical nature of the intensity correlations between two photons in a pair are preserved after the storage and retrieval process, with storage times up to 200ns. Finally, a violation of a Bell inequality by more than three standard deviations proves that the storage process creates a light-matter entangled state. These results represent the first successful mapping of energy-time entangled photons onto a quantum memory, and we note that the intrinsic multimode capability makes the AFC perfectly suitable for storing this kind of entanglement. The results of the experiment are threefold. It demonstrates,​ for the first time, the successful storage of heralded single photons in a solid-state memory with storage-and-retrieval efficiencies surpassing 20% for the shortest storage time of 25ns. Additionally,​ we show that the non-classical nature of the intensity correlations between two photons in a pair are preserved after the storage and retrieval process, with storage times up to 200ns. Finally, a violation of a Bell inequality by more than three standard deviations proves that the storage process creates a light-matter entangled state. These results represent the first successful mapping of energy-time entangled photons onto a quantum memory, and we note that the intrinsic multimode capability makes the AFC perfectly suitable for storing this kind of entanglement.
  
-A similar experiment with similar ​results was performed by E. Saglamyurek et al. [[#​References|[2]]] at the University of Calgary and published in the same issue of Nature. ​+A similar experiment with comparable ​results was performed by E. Saglamyurek et al. [[#​References|[2]]] at the University of Calgary and published in the same issue of Nature. ​