Nature Communications (Oct 2017)

Entanglement between more than two hundred macroscopic atomic ensembles in a solid

  • P. Zarkeshian,
  • C. Deshmukh,
  • N. Sinclair,
  • S. K. Goyal,
  • G. H. Aguilar,
  • P. Lefebvre,
  • M. Grimau Puigibert,
  • V. B. Verma,
  • F. Marsili,
  • M. D. Shaw,
  • S. W. Nam,
  • K. Heshami,
  • D. Oblak,
  • W. Tittel,
  • C. Simon

DOI
https://doi.org/10.1038/s41467-017-00897-7
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 10

Abstract

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Multipartite entanglement is of both fundamental and practical interest, but is notoriously difficult to witness and characterise. Here, Zarkeshian et al. demonstrate multipartite entanglement in an atomic frequency comb storing a single photon in a Dicke state spread over a macroscopic ensemble.