{
  "abstract": "Ultralight dark matter can induce weak oscillating magnetic-like signals and can therefore be searched for with precision magnetometry. Levitated ferromagnets provide a sensitive platform for such searches, but a single ferromagnet is limited in total polarized spin and readout performance. We investigate a levitated ferromagnet lattice as a scalable detector for ultralight dark matter. We develop a theoretical description of the collective lattice response in the fully trapped regime, incorporating dipole-dipole interactions, finite-size effects, and boundary-induced mode mixing. We further analyze the collective noise budget and show that interaction effects mainly produce a narrow blind zone through thermal-noise amplification, while away from this region, the lattice preserves favorable collective noise scaling. We then derive projected sensitivities to axion-electron, dark-photon, and axion-photon couplings. We find that the lattice improves the reach in all three channels relative to a single-ferromagnet detector, with an additional coherent signal enhancement in the axion-photon channel from the lattice-generated electromagnetic background.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2605.17417",
  "author_total": 4,
  "authors": [
    {
      "name": "Dongyi Yang"
    },
    {
      "name": "Xiao Yang"
    },
    {
      "name": "Chenxi Sun"
    },
    {
      "name": "Jianwei Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3yeeevtgjqgs0.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.17417",
  "fulltext_url": null,
  "id": "3yeeevtgjqgs0",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.17417",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2605.17417",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3yeeevtgjqgs0.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:48Z",
      "native_id": "2605.17417",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.17417"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Collective response and noise of a levitated ferromagnet lattice for ultralight dark matter detection",
  "title_text": "Collective response and noise of a levitated ferromagnet lattice for ultralight dark matter detection",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:48Z",
  "url": "https://research.draconitic.com/paper/3yeeevtgjqgs0",
  "venue": "arXiv",
  "versions": []
}