{
  "abstract": "We demonstrate sustained operation of a solid-state thorium-229 nuclear clock using continuous-wave absorption at 148.4 nm. In a $^{229}\\mathrm{Th}:\\mathrm{CaF}_2$ crystal, we resolve four quadrupole components of the D center and a broader O-center resonance. Feedback on the strongest narrow component is updated approximately every 10 s and remains active throughout a 30-h record. A hydrogen-maser-referenced frequency comb measures the output. Its fractional frequency instability follows approximately $1.29\\times10^{-11}(τ/\\mathrm{s})^{-1/2}$ and reaches $1.24\\times10^{-13}$ at $10^4$ s. A separate 6.6-h run demonstrates feedback on a second quadrupole component. These measurements connect the resolved absorption spectra with sustained nuclear-clock operation and frequency comparisons between crystal segments.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.10056",
  "author_total": 24,
  "authors": [
    {
      "name": "Pengfei Wang"
    },
    {
      "name": "Xu-Fei Yin"
    },
    {
      "name": "Hanlin Wang"
    },
    {
      "name": "Jinming Liu"
    },
    {
      "name": "Qichen Qin"
    },
    {
      "name": "Zhouzhi Tan"
    },
    {
      "name": "Chengrun Leng"
    },
    {
      "name": "Mingxuan Zhang"
    },
    {
      "name": "Zixuan Li"
    },
    {
      "name": "Wenxin Bu"
    },
    {
      "name": "Xuan Fan"
    },
    {
      "name": "Yihang Liu"
    },
    {
      "name": "Kjeld Beeks"
    },
    {
      "name": "Benedikt Gerstenecker"
    },
    {
      "name": "Sebastian Lahs"
    },
    {
      "name": "Meng Wang"
    },
    {
      "name": "Tung-Hsun Chung"
    },
    {
      "name": "Yong-Heng Huo"
    },
    {
      "name": "Yin Hang"
    },
    {
      "name": "Hanning Dai"
    },
    {
      "name": "Thorsten Schumm"
    },
    {
      "name": "Zhiqiang Zhang"
    },
    {
      "name": "Jian-Wei Pan"
    },
    {
      "name": "Yu-Ao Chen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ccgxeajahtsd1.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.10056",
  "fulltext_url": null,
  "id": "ccgxeajahtsd1",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.10056",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.atom-ph"
    ],
    [
      "openalex",
      "3107|Advanced Frequency and Time Standards"
    ]
  ],
  "openalex": "W7220999828",
  "pdf_url": "https://arxiv.org/pdf/2610.10056",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-07",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ccgxeajahtsd1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:37Z",
      "native_id": "2610.10056",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.10056"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.atom-ph",
      "subfield": "amo"
    }
  ],
  "title": "A solid-state nuclear clock based on VUV absorption spectroscopy of $^{229}$Th",
  "title_text": "A solid-state nuclear clock based on VUV absorption spectroscopy of ^229Th",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:37Z",
  "url": "https://research.draconitic.com/paper/ccgxeajahtsd1",
  "venue": "arXiv",
  "versions": []
}