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Optical spin-state polarization in a binuclear europium complex towards molecule-based coherent light-spin interfaces

Author

Listed:
  • Kuppusamy Senthil Kumar

    (CNRS-Université de Strasbourg
    Karlsruhe Institute of Technology (KIT))

  • Diana Serrano

    (CNRS)

  • Aline M. Nonat

    (ECPM)

  • Benoît Heinrich

    (CNRS-Université de Strasbourg)

  • Lydia Karmazin

    (Fédération de Chimie Le Bel FR2010 CNRS-Université de Strasbourg)

  • Loïc J. Charbonnière

    (ECPM)

  • Philippe Goldner

    (CNRS)

  • Mario Ruben

    (Karlsruhe Institute of Technology (KIT)
    Karlsruhe Institute of Technology (KIT)
    Université de Strasbourg)

Abstract

The success of the emerging field of solid-state optical quantum information processing (QIP) critically depends on the access to resonant optical materials. Rare-earth ion (REI)-based molecular systems, whose quantum properties could be tuned taking advantage of molecular engineering strategies, are one of the systems actively pursued for the implementation of QIP schemes. Herein, we demonstrate the efficient polarization of ground-state nuclear spins—a fundamental requirement for all-optical spin initialization and addressing—in a binuclear Eu(III) complex, featuring inhomogeneously broadened 5D0 → 7F0 optical transition. At 1.4 K, long-lived spectral holes have been burnt in the transition: homogeneous linewidth (Γh) = 22 ± 1 MHz, which translates as optical coherence lifetime (T2opt) = 14.5 ± 0.7 ns, and ground-state spin population lifetime (T1spin) = 1.6 ± 0.4 s have been obtained. The results presented in this study could be a progressive step towards the realization of molecule-based coherent light-spin QIP interfaces.

Suggested Citation

  • Kuppusamy Senthil Kumar & Diana Serrano & Aline M. Nonat & Benoît Heinrich & Lydia Karmazin & Loïc J. Charbonnière & Philippe Goldner & Mario Ruben, 2021. "Optical spin-state polarization in a binuclear europium complex towards molecule-based coherent light-spin interfaces," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-22383-x
    DOI: 10.1038/s41467-021-22383-x
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    Cited by:

    1. Tolulope Michael Ajayi & Vijay Singh & Kyaw Zin Latt & Sanjoy Sarkar & Xinyue Cheng & Sineth Premarathna & Naveen K. Dandu & Shaoze Wang & Fahimeh Movahedifar & Sarah Wieghold & Nozomi Shirato & Volke, 2022. "Atomically precise control of rotational dynamics in charged rare-earth complexes on a metal surface," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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