Tunable clock transitions in lanthanide complexes for quantum information technologies

ORAL

Abstract

Bottom-up chemical synthesis of molecular spin qubit architectures represents a novel way for pursuing next-generation quantum technologies that could substantially influence all fields of human activity from complex structural biology to finance.1,2 Our work focuses on fine-tuning resonant clock transitions (CTs) within 4f n5d1 Ln(II) complexes, such that the associated transition frequencies, f, are insensitive to the local magnetic induction, B0, with df/dB0 → 0 at the CT minimum. This offers protection from magnetic noise and up to 10 times longer phase memory times, Tm, compared to conventional EPR transitions.3 As an added bonus, hyperfine CTs associated with significant s-d mixing in 4f n5d1 Ln(II) complexes minimizes spin-orbit coupling, leading also to enhanced spin-lattice relaxation times, T1.4

1. Perdomo-Ortiz et al., Sci. Rep., 2012, 2, 1–7.

2. Gershenfeld et al., Sci. Am., 1998, 278, 66–71.

3. Shiddiq et al., Nature, 2016, 531, 348–351.

4. Kundu et al., Nature Chem., 2022, 14, 392–397.

*This work was supported by the DOE under Contract No. DE-AC02-05CH11231. Work performed at the National High Magnetic Field Laboratory is supported by the NSF (DMR-1644779) and the State of Florida.

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Publication: Kundu et al., Nature Chem., 2022, 14, 392–397.

Presenters

  • Jakub Hruby

    • National High Magnetic Field Laboratory

Authors

  • Jakub Hruby

    • National High Magnetic Field Laboratory

  • Krishnendu Kundu

    • National High Magnetic Field Laboratory

  • Danh Ngo

    • University of California Berkeley

  • Ryan Murphy

    • University of California Berkeley

  • Randall McClain

    • Naval Air Warfare Center Weapons Division

  • Randall McClain

    • Naval Air Warfare Center Weapons Division

  • Jeffrey R Long

    • University of California, Berkeley
    • University of California Berkeley

  • Stephen Hill

    • Florida State University