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Single-qudit control in Sr87 via optical nuclear electric resonance

Johannes K. Krondorfer1,*, Matthias Diez1,2, and Andreas W. Hauser1,†

  • *Contact author: johannes.krondorfer@gmail.com
  • †Contact author: andreas.w.hauser@gmail.com
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Phys. Rev. A 112, 062614 – Published 10 December, 2025

DOI: https://doi.org/10.1103/tw3x-zswm

Abstract

Optical nuclear electric resonance (ONER) was recently proposed as a fast and robust single-qubit gate mechanism in Sr87. Here, we demonstrate through numerical simulations that ONER can be extended to single-qudit control, addressing multiple one-level hyperfine transitions within the ten-dimensional nuclear-spin manifold. We identify suitable operating regimes and show that ONER enables high-fidelity spin manipulations, with simulated π-gate fidelities exceeding 99.9%, while maintaining coherence under realistic parameter fluctuations. These results establish a proof of principle for optical qudit control in Sr87 and delineate practical parameter ranges for future experiments, highlighting ONER as a promising pathway toward high-dimensional quantum information processing.

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Phys. Rev. A 112, 062614– Published 10 December, 2025
  • Received 10 July 2025
  • Revised 17 September 2025
  • Accepted 20 November 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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