{
  "abstract": "Silicon spin qubits offer a promising path to scalable quantum computing due to their compatibility with industrial semiconductor manufacturing. A key requirement for scaling quantum processors is the ability to perform high-fidelity operations in parallel across many qubits. However, simultaneous control remains a major challenge in silicon devices, as fidelities typically degrade under parallel operation. Here we identify microwave-drive-induced a.c.-Stark shifts as the dominant source of this degradation in a five-qubit silicon spin array. We address this by introducing a scalable mitigation protocol based solely on pairwise phase calibrations. Using tailored control pulses on a shared control line, we achieve primitive X and Y gate fidelities well above 99.99% for each qubit individually, with some approaching 99.999%. Furthermore, these fidelities are preserved above 99.99% during simultaneous operation of up to three qubits. During parallel five-qubit operation, fidelities remain above the widely targeted fault-tolerant threshold of 99.9%. By maintaining high-fidelity control during simultaneous operation, shared qubit-control lines can support the development of large-scale semiconductor quantum processors.",
  "abstract_shown": true,
  "affiliations": [
    "Center for Emergent Matter Science, RIKEN, Wako-shi, Japan",
    "Department of Physics, National Taiwan University, Taipei, Taiwan",
    "Laboratory for Solid State Physics, ETH Zurich, Zurich, Switzerland",
    "Center for Quantum Computing, RIKEN, Wako-shi, Japan",
    "QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Delft, the Netherlands",
    "Center of Quantum Science and Engineering, National Taiwan University, Taipei, Taiwan",
    "Physics Division, National Center for Theoretical Sciences, Taipei, Taiwan"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 11,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Yi-Hsien Wu",
      "orcid": "0009-0002-4137-989X"
    },
    {
      "affs": [
        0
      ],
      "name": "Leon C. Camenzind",
      "orcid": "0000-0002-2278-1915"
    },
    {
      "affs": [
        0,
        2
      ],
      "name": "Patrick Bütler",
      "orcid": "0009-0000-3140-4057"
    },
    {
      "affs": [
        0
      ],
      "name": "Ik Kyeong Jin",
      "orcid": "0000-0002-8758-4197"
    },
    {
      "affs": [
        0
      ],
      "name": "Akito Noiri",
      "orcid": "0000-0001-9145-0303"
    },
    {
      "affs": [
        0
      ],
      "name": "Kenta Takeda",
      "orcid": "0000-0003-1240-1103"
    },
    {
      "affs": [
        0
      ],
      "name": "Takashi Nakajima",
      "orcid": "0000-0001-6759-6441"
    },
    {
      "affs": [
        3
      ],
      "name": "Takashi Kobayashi",
      "orcid": "0000-0003-2841-8129"
    },
    {
      "affs": [
        4
      ],
      "name": "Giordano Scappucci",
      "orcid": "0000-0003-2512-0079"
    },
    {
      "affs": [
        5,
        1,
        6
      ],
      "name": "Hsi‐Sheng Goan",
      "orcid": "0000-0001-8117-5846"
    },
    {
      "affs": [
        0,
        3
      ],
      "name": "Seigo Tarucha",
      "orcid": "0000-0001-7465-0135"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/csbrx2n3ggw43.bib",
  "cited_by": 43,
  "doi": "10.1038/s41567-026-03466-2",
  "fulltext_url": null,
  "id": "csbrx2n3ggw43",
  "issns": [
    "1745-2473",
    "1745-2481"
  ],
  "landing_url": "https://doi.org/10.1038/s41567-026-03466-2",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3104|Quantum and electron transport phenomena"
    ],
    [
      "openalex",
      "3107|Quantum and electron transport phenomena"
    ]
  ],
  "openalex": "W4415141225",
  "pdf_url": "https://www.nature.com/articles/s41567-026-03466-2.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-15",
  "publisher": "Nature Portfolio",
  "ris": "https://research.draconitic.com/paper/csbrx2n3ggw43.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T13:21:02Z",
      "native_id": "W4415141225",
      "source": "openalex",
      "url": "https://doi.org/10.1038/s41567-026-03466-2"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3107|Quantum and electron transport phenomena",
      "subfield": "amo"
    },
    {
      "field": "physics",
      "origin": "openalex:3104|Quantum and electron transport phenomena",
      "subfield": "quantum"
    }
  ],
  "title": "Simultaneous high-fidelity single-qubit gates in a spin qubit array",
  "title_text": "Simultaneous high-fidelity single-qubit gates in a spin qubit array",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T13:20:44Z",
  "url": "https://research.draconitic.com/paper/csbrx2n3ggw43",
  "venue": "Nature Physics",
  "versions": []
}