Nature Communications (Apr 2021)

One-hour coherent optical storage in an atomic frequency comb memory

  • Yu Ma,
  • You-Zhi Ma,
  • Zong-Quan Zhou,
  • Chuan-Feng Li,
  • Guang-Can Guo

DOI
https://doi.org/10.1038/s41467-021-22706-y
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 6

Abstract

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Quantum memories are key components for quantum communication, but current storage times are still too short. Here, the authors use the atomic frequency comb protocol in a zero-first-order-Zeeman field to coherently store an optical pulse for an hour in a cryogenically cooled rare-earth doped crystal.