{
  "abstract": "Neutral-atom array and cavity quantum electrodynamics offer complementary strengths for quantum science: scalable, reconfigurable qubit architectures and strong coherent light-matter coupling. Combining them in a single platform requires an optical cavity with simultaneously high cooperativity, sufficient mode volume to accommodate atom array, and ample side optical access for atom trapping, imaging, cooling, and rearrangement, a combination that is challenging to achieve. Here we realize an atomic array integrated with a millimeter-scale Fabry--Pérot cavity whose optically-characterized single-atom cooperativity reaches $η_{\\mathrm{cav}}=125\\pm13$. Atom-cavity transmission spectra of trapped atoms yield an effective spectroscopic cooperativity $η_{\\mathrm{spec}}=106\\pm 3$, providing an in-situ verification of strong coupling in the integrated platform. In this integrated system, we achieve a state-measurement fidelity of $99.925^{+15}_{-18}\\%$ for a single atom with a 4-$μ$s readout time. We also demonstrate simultaneous coupling of up to 21 individually trapped atoms to the antinode of the cavity mode. The key technical advance is a two-step mirror-fabrication method combining precision mechanical shaping and carbon-dioxide laser polishing, which produces concave fused-silica mirrors with sub-millimeter radii of curvature and residual roughness below $2~Å$. Our results establish a regime of cavity-integrated atomic array that simultaneously provides high cooperativity, large mode volume, and flexible manipulation of individual atoms, opening opportunities for cavity-assisted quantum state readout and long-range entanglement-engineering in atom-array platforms.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.04090",
  "author_total": 10,
  "authors": [
    {
      "name": "Jilai Ye"
    },
    {
      "name": "Zhihao Chi"
    },
    {
      "name": "Ye Tian"
    },
    {
      "name": "Shuyao Mei"
    },
    {
      "name": "Xiaoyu Li"
    },
    {
      "name": "Wanlin Wang"
    },
    {
      "name": "Wenjun Zhang"
    },
    {
      "name": "Yajuan Zhao"
    },
    {
      "name": "Jiazhong Hu"
    },
    {
      "name": "Wenlan Chen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3ppafd6pd6s6r.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.04090",
  "fulltext_url": null,
  "id": "3ppafd6pd6s6r",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.04090",
  "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",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum optics and atomic interactions"
    ]
  ],
  "openalex": "W7167578914",
  "pdf_url": "https://arxiv.org/pdf/2607.04090",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3ppafd6pd6s6r.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:39Z",
      "native_id": "2607.04090",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.04090"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Controlling Atom Array in an Ultra-high-cooperativity Optical Cavity",
  "title_text": "Controlling Atom Array in an Ultra-high-cooperativity Optical Cavity",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:39Z",
  "url": "https://research.draconitic.com/paper/3ppafd6pd6s6r",
  "venue": "arXiv",
  "versions": []
}