Nature Communications (May 2018)

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

  • Rikizo Ikuta,
  • Toshiki Kobayashi,
  • Tetsuo Kawakami,
  • Shigehito Miki,
  • Masahiro Yabuno,
  • Taro Yamashita,
  • Hirotaka Terai,
  • Masato Koashi,
  • Tetsuya Mukai,
  • Takashi Yamamoto,
  • Nobuyuki Imoto

DOI
https://doi.org/10.1038/s41467-018-04338-x
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 8

Abstract

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Quantum repeater-based communication requires the ability to interface good quantum memories to telecom photons. Here, the authors report polarization-insensitive frequency conversion to telecom wavelength of a photon entangled with a Rb ensemble, preserving the entanglement in the process.