Subnatural-linewidth biphotons from a Doppler-broadened hot atomic vapour cell

Quantum-network protocols based on photon-atom interfaces have stimulated a great demand for single-photon sources with narrow bandwidth. Here the authors report the generation of entangled photon pairs with controllable bandwidth and coherence time from a Doppler-broadened hot atomic vapour cell.

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Auteurs principaux: Chi Shu, Peng Chen, Tsz Kiu Aaron Chow, Lingbang Zhu, Yanhong Xiao, M.M.T. Loy, Shengwang Du
Format: article
Langue:EN
Publié: Nature Portfolio 2016
Sujets:
Q
Accès en ligne:https://doaj.org/article/f6f33d4d92d841a7943c15e3f368bf31
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Résumé:Quantum-network protocols based on photon-atom interfaces have stimulated a great demand for single-photon sources with narrow bandwidth. Here the authors report the generation of entangled photon pairs with controllable bandwidth and coherence time from a Doppler-broadened hot atomic vapour cell.