Polarization insensitive frequency conversion for an atom-photon entanglement distribution via a telecom network

Long-lifetime quantum storages accessible to the telecom photonic infrastructure are essential to long-distance quantum communication. Atomic quantum storages have achieved subsecond storage time corresponding to 1000 km transmission time for a telecom photon through a quantum repeater algorithm. Ho...

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Autores principales: Ikuta, Rikizo, Kobayashi, Toshiki, Kawakami, Tetsuo, Miki, Shigehito, Yabuno, Masahiro, Yamashita, Taro, Terai, Hirotaka, Koashi, Masato, Mukai, Tetsuya, Yamamoto, Takashi, Imoto, Nobuyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5962590/
https://www.ncbi.nlm.nih.gov/pubmed/29784998
http://dx.doi.org/10.1038/s41467-018-04338-x
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author Ikuta, Rikizo
Kobayashi, Toshiki
Kawakami, Tetsuo
Miki, Shigehito
Yabuno, Masahiro
Yamashita, Taro
Terai, Hirotaka
Koashi, Masato
Mukai, Tetsuya
Yamamoto, Takashi
Imoto, Nobuyuki
author_facet Ikuta, Rikizo
Kobayashi, Toshiki
Kawakami, Tetsuo
Miki, Shigehito
Yabuno, Masahiro
Yamashita, Taro
Terai, Hirotaka
Koashi, Masato
Mukai, Tetsuya
Yamamoto, Takashi
Imoto, Nobuyuki
author_sort Ikuta, Rikizo
collection PubMed
description Long-lifetime quantum storages accessible to the telecom photonic infrastructure are essential to long-distance quantum communication. Atomic quantum storages have achieved subsecond storage time corresponding to 1000 km transmission time for a telecom photon through a quantum repeater algorithm. However, the telecom photon cannot be directly interfaced to typical atomic storages. Solid-state quantum frequency conversions fill this wavelength gap. Here we report on the experimental demonstration of a polarization-insensitive solid-state quantum frequency conversion to a telecom photon from a short-wavelength photon entangled with an atomic ensemble. Atom–photon entanglement has been generated with a Rb atomic ensemble and the photon has been translated to telecom range while retaining the entanglement by our nonlinear-crystal-based frequency converter in a Sagnac interferometer.
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spelling pubmed-59625902018-05-24 Polarization insensitive frequency conversion for an atom-photon entanglement distribution via a telecom network Ikuta, Rikizo Kobayashi, Toshiki Kawakami, Tetsuo Miki, Shigehito Yabuno, Masahiro Yamashita, Taro Terai, Hirotaka Koashi, Masato Mukai, Tetsuya Yamamoto, Takashi Imoto, Nobuyuki Nat Commun Article Long-lifetime quantum storages accessible to the telecom photonic infrastructure are essential to long-distance quantum communication. Atomic quantum storages have achieved subsecond storage time corresponding to 1000 km transmission time for a telecom photon through a quantum repeater algorithm. However, the telecom photon cannot be directly interfaced to typical atomic storages. Solid-state quantum frequency conversions fill this wavelength gap. Here we report on the experimental demonstration of a polarization-insensitive solid-state quantum frequency conversion to a telecom photon from a short-wavelength photon entangled with an atomic ensemble. Atom–photon entanglement has been generated with a Rb atomic ensemble and the photon has been translated to telecom range while retaining the entanglement by our nonlinear-crystal-based frequency converter in a Sagnac interferometer. Nature Publishing Group UK 2018-05-21 /pmc/articles/PMC5962590/ /pubmed/29784998 http://dx.doi.org/10.1038/s41467-018-04338-x Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Ikuta, Rikizo
Kobayashi, Toshiki
Kawakami, Tetsuo
Miki, Shigehito
Yabuno, Masahiro
Yamashita, Taro
Terai, Hirotaka
Koashi, Masato
Mukai, Tetsuya
Yamamoto, Takashi
Imoto, Nobuyuki
Polarization insensitive frequency conversion for an atom-photon entanglement distribution via a telecom network
title Polarization insensitive frequency conversion for an atom-photon entanglement distribution via a telecom network
title_full Polarization insensitive frequency conversion for an atom-photon entanglement distribution via a telecom network
title_fullStr Polarization insensitive frequency conversion for an atom-photon entanglement distribution via a telecom network
title_full_unstemmed Polarization insensitive frequency conversion for an atom-photon entanglement distribution via a telecom network
title_short Polarization insensitive frequency conversion for an atom-photon entanglement distribution via a telecom network
title_sort polarization insensitive frequency conversion for an atom-photon entanglement distribution via a telecom network
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5962590/
https://www.ncbi.nlm.nih.gov/pubmed/29784998
http://dx.doi.org/10.1038/s41467-018-04338-x
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