Nature Communications (Feb 2020)

Unveiling contextual realities by microscopically entangling a neutron

  • J. Shen,
  • S. J. Kuhn,
  • R. M. Dalgliesh,
  • V. O. de Haan,
  • N. Geerits,
  • A. A. M. Irfan,
  • F. Li,
  • S. Lu,
  • S. R. Parnell,
  • J. Plomp,
  • A. A. van Well,
  • A. Washington,
  • D. V. Baxter,
  • G. Ortiz,
  • W. M. Snow,
  • R. Pynn

DOI
https://doi.org/10.1038/s41467-020-14741-y
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 6

Abstract

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Exploring correlations in strongly entangled quantum materials is of interest. Here the authors generate a tunable spin-, trajectory-, and energy-entangled neutron beam using a neutron spin-echo interferometer and show violations of Clauser-Horne-Shimony-Holt and Mermin contextuality inequalities with micron-scale trajectory separation.