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Atom interferometry

Matter waves hang in there

Nature Physics volume 20, pages 1221–1222 (2024)Cite this article

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An atom interferometer now maintains a spatial superposition state for 70 seconds, compared to few seconds in freely falling systems. This could improve measurements of the strength of gravitational fields and quantum gravity studies.

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Fig. 1: Cold atoms are held in a superposition state in an optical light field.

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Authors and Affiliations

  1. Leibniz Universität Hannover, Institut für Theoretische Physik, Hannover, Germany

    Klemens Hammerer

  2. Leibniz Universität Hannover, Institut für Quantenoptik, Hannover, Germany

    Naceur Gaaloul

Authors
  1. Klemens Hammerer
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  2. Naceur Gaaloul
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Correspondence to Klemens Hammerer or Naceur Gaaloul.

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The authors declare no competing interests.

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Hammerer, K., Gaaloul, N. Matter waves hang in there. Nat. Phys. 20, 1221–1222 (2024). https://doi.org/10.1038/s41567-024-02605-x

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