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

Chi Shu; Peng Chen; Tsz Kiu Aaron Chow; Lingbang Zhu; Yanhong Xiao; M.M.T. Loy; Shengwang Du

doi:10.1038/ncomms12783

Nature Communications (Sep 2016)

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

Chi Shu,
Peng Chen,
Tsz Kiu Aaron Chow,
Lingbang Zhu,
Yanhong Xiao,
M.M.T. Loy,
Shengwang Du

Affiliations

Chi Shu: Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay
Peng Chen: Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay
Tsz Kiu Aaron Chow: Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay
Lingbang Zhu: Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay
Yanhong Xiao: Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory of Micro and Nano Photonic Structures, Fudan University
M.M.T. Loy: Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay
Shengwang Du: Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay

DOI: https://doi.org/10.1038/ncomms12783
Journal volume & issue: Vol. 7, no. 1
pp. 1 – 5

Abstract

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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.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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