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Towards quantum error correction with two-body gates for quantum registers based on nitrogen-vacancy centers in diamond

Daniel L. Dulog* and Martin B. Plenio†

  • *Contact author: daniel.dulog@uni-ulm.de
  • †Contact author: martin.plenio@uni-ulm.de
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Phys. Rev. B 113, 054446 – Published 27 February, 2026

DOI: https://doi.org/10.1103/1fh4-l1g8

Abstract

Color centers in diamond provide a possible hardware for quantum computation, where the most basic quantum information processing unit are nitrogen-vacancy (NV) centers, each in contact with adjacent carbon nuclear spins. With specifically tailored dynamical decoupling sequences, it is possible to execute selective, high-fidelity two-body gates between the electron spin of the NV center and a targeted nuclear spin. In this work, we present a method to determine the optimal execution time that balances the trade-off between fidelity and execution speed for gates generated by adaptive XY sequences. With these optimized gates, we use the nuclear spin environment as a code space for quantum error correction within a color center register.

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Phys. Rev. B 113, 054446– Published 27 February, 2026
  • Received 4 March 2025
  • Revised 2 September 2025
  • Accepted 5 February 2026
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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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