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Suppressing dipolar relaxation in thin layers of dysprosium atoms

Author

Listed:
  • Pierre Barral

    (Massachusetts Institute of Technology)

  • Michael Cantara

    (Massachusetts Institute of Technology)

  • Li Du

    (Massachusetts Institute of Technology)

  • William Lunden

    (Massachusetts Institute of Technology)

  • Julius Hond

    (Massachusetts Institute of Technology)

  • Alan O. Jamison

    (Massachusetts Institute of Technology)

  • Wolfgang Ketterle

    (Massachusetts Institute of Technology)

Abstract

The dipolar interaction can be attractive or repulsive, depending on the position and orientation of the dipoles. Constraining atoms to a plane with their magnetic moment aligned perpendicularly leads to a largely side-by-side repulsion and generates a dipolar barrier which prevents atoms from approaching each other. We show experimentally and theoretically how this can suppress dipolar relaxation, the dominant loss process in spin mixtures of highly magnetic atoms. Using dysprosium, we observe an order of magnitude reduction in the relaxation rate constant, and another factor of ten is within reach based on the models which we have validated with our experimental study. The loss suppression opens up many new possibilities for quantum simulations with spin mixtures of highly magnetic atoms.

Suggested Citation

  • Pierre Barral & Michael Cantara & Li Du & William Lunden & Julius Hond & Alan O. Jamison & Wolfgang Ketterle, 2024. "Suppressing dipolar relaxation in thin layers of dysprosium atoms," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-47260-1
    DOI: 10.1038/s41467-024-47260-1
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    References listed on IDEAS

    as
    1. Y.-J. Lin & K. Jiménez-García & I. B. Spielman, 2011. "Spin–orbit-coupled Bose–Einstein condensates," Nature, Nature, vol. 471(7336), pages 83-86, March.
    2. Giacomo Valtolina & Kyle Matsuda & William G. Tobias & Jun-Ru Li & Luigi De Marco & Jun Ye, 2020. "Dipolar evaporation of reactive molecules to below the Fermi temperature," Nature, Nature, vol. 588(7837), pages 239-243, December.
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