Skip to content
DraconiticResearch
Search Sources API
203,234 studies31 sourcesUpdated 32 min ago
Peer-reviewedCC BYnpj Quantum Information

Ten-second electron-spin coherence in isotopically engineered diamond

  • T. Yamamoto1,2
  • Hendrik Benjamin van Ommen1,2
  • Kai-Niklas Schymik1,2
  • Beer de Zoeten1,2
  • Shinobu Onoda3
  • Seiichi Saiki3
  • Takeshi Ohshima4,3
  • Hadi Arjmandi‐Tash5
  • René Vollmer5
  • T. H. Taminiau1,2
5 affiliations
  1. 1Kavli Institute of Nanoscience Delft, Delft University of Technology, Delft, The Netherlands
  2. 2QuTech, Delft University of Technology, Delft, The Netherlands
  3. 3Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology (QST), Watanuki, Takasaki, Gunma, Japan
  4. 4Department of Materials Science Tohoku University, Aoba, Sendai, Miyagi, Japan
  5. 5Netherlands Organisation for Applied Scientific Research (TNO), Delft, The Netherlands
Open at sourcePDFDOICite

Abstract

Solid-state spin defects are a promising platform for quantum networks. A key requirement is to combine long ground-state spin-coherence times with a coherent optical transition for spin-photon entanglement. Here, we investigate the spin and optical coherence of single nitrogen-vacancy (NV) centres in (111)-grown isotopically engineered diamond. Our diamond-growth process yields a precisely controlled 13 C concentration and low-ppb nitrogen concentrations. Combined with the mitigation of 50 Hz noise using a real-time feedforward scheme and tailored decoupling sequences, this enables record defect-electron-spin coherence times of T 2 = 6.8(1) ms for a Hahn echo and of T2DD=11.2(8) T 2 D D = 11.2 ( 8 ) s under dynamical decoupling. In addition, we observe coherent optical transitions with a near-lifetime-limited homogeneous linewidth of 16.9(4) MHz (222(3) MHz inhomogeneous broadening under 515nm illumination) and characterize the spectral diffusion dynamics. These results provide new avenues to investigate the incorporation of impurities in diamond and new opportunities for improved spin-qubit control for quantum networks and other quantum technologies.

Related

  1. Defect Diamond‐Like d 10 Metal Indium Selenium With Strong Second‐Harmonic Generation and Enhanced Laser‐Induced Damage Threshold
    Muhammad Zeeshan, Zhiyong Bai, Kaijie Xie +7
    SmallPeer-reviewedLicence not statedFull text5 citedMaterials & polymersOpenAlex
  2. High-sensitivity optical detection of electron-nuclear spin clusters in diamond
    L Chambard, Alrik Durand, Julien Voisin +3
    Physical Review ResearchPeer-reviewedCC BY 4.0Full textMaterials & polymersHAL
  3. Quadruple isotope dilution versus conventional calibration methods for accurate urinary hippuric acid quantification with a synthesized isotopically labelled material
    Süleyman Bodur, Arda Atakol, Kumsal Eroğlu +2
    Scientific ReportsPeer-reviewedCC BY-NC-ND 4.0Full textAnalytical chemistryCrossref
  4. Second order N-Electron Valence state Perturbation Theory for polaritonic systems
    Edoardo Ascani, Riccardo Alessandro, Celestino Angeli +1
    arXivPreprintCC BY 4.0Full textPhysical chemistryarXiv
  5. Integer electron-count cuts in variational second-order reduced-density-matrix theory. I. Molecular dissociation with fixed real-space and orbital partitions
    Maho Nakata
    arXivPreprintarXiv licenceFull textPhysical chemistryarXiv

Cite

BibTeXRIS
BibTeX
@article{yamamoto2026tensecond,
  title = {{Ten-second electron-spin coherence in isotopically engineered diamond}},
  author = {T. Yamamoto and Hendrik Benjamin van Ommen and Kai-Niklas Schymik and Beer de Zoeten and Shinobu Onoda and Seiichi Saiki and Takeshi Ohshima and Hadi Arjmandi‐Tash and René Vollmer and T. H. Taminiau},
  journal = {npj Quantum Information},
  year = {2026},
  month = sep,
  doi = {10.1038/s41534-026-01368-y},
  url = {https://doi.org/10.1038/s41534-026-01368-y},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Ten-second electron-spin coherence in isotopically engineered diamond
AU  - T. Yamamoto
AU  - Hendrik Benjamin van Ommen
AU  - Kai-Niklas Schymik
AU  - Beer de Zoeten
AU  - Shinobu Onoda
AU  - Seiichi Saiki
AU  - Takeshi Ohshima
AU  - Hadi Arjmandi‐Tash
AU  - René Vollmer
AU  - T. H. Taminiau
PY  - 2026
DA  - 2026/09/28
JO  - npj Quantum Information
DO  - 10.1038/s41534-026-01368-y
UR  - https://doi.org/10.1038/s41534-026-01368-y
AB  - Solid-state spin defects are a promising platform for quantum networks. A key requirement is to combine long ground-state spin-coherence times with a coherent optical transition for spin-photon entanglement. Here, we investigate the spin and optical coherence of single nitrogen-vacancy (NV) centres in (111)-grown isotopically engineered diamond. Our diamond-growth process yields a precisely controlled 13 C concentration and low-ppb nitrogen concentrations. Combined with the mitigation of 50 Hz noise using a real-time feedforward scheme and tailored decoupling sequences, this enables record defect-electron-spin coherence times of T 2 = 6.8(1) ms for a Hahn echo and of T_2^DD=11.2(8) T 2 D D = 11.2 ( 8 ) s under dynamical decoupling. In addition, we observe coherent optical transitions with a near-lifetime-limited homogeneous linewidth of 16.9(4) MHz (222(3) MHz inhomogeneous broadening under 515nm illumination) and characterize the spectral diffusion dynamics. These results provide new avenues to investigate the incorporation of impurities in diamond and new opportunities for improved spin-qubit control for quantum networks and other quantum technologies.
SN  - 2056-6387
ER  -