{
  "abstract": "The cavity-mediated coupling between magnons in an yttrium-iron-garnet (YIG) sphere and a superconducting qubit has recently been demonstrated as a new platform for preparing macroscopic quantum states. Here, based on this system, we propose to entangle two magnon modes in two YIG spheres by driving the qubit with a two-tone field and by appropriately choosing the frequencies and strengths of the two driving fields. We show that strong entanglement can be achieved with fully feasible parameters. We further provide a detection scheme for experimentally verifying the entanglement. Our results indicate that macroscopic entanglement between two magnon modes in two millimeter-sized YIG spheres, involving more than $10^{18}$ spins, can be realized using currently available parameters, which finds promising applications in fundamental studies, such as macroscopic quantum mechanics and the test of unconventional decoherence theories.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Rev. A 114, 043707 (2026)",
  "arxiv": "2605.06297",
  "author_total": 4,
  "authors": [
    {
      "name": "Rong-Can Yang"
    },
    {
      "name": "Gang Liu"
    },
    {
      "name": "Gen Li"
    },
    {
      "name": "Jie Li"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0hykm2zvxfgwk.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.06297",
  "fulltext_url": null,
  "id": "0hykm2zvxfgwk",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.06297",
  "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",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2605.06297",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-25",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0hykm2zvxfgwk.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:37Z",
      "native_id": "2605.06297",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.06297"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Macroscopic entanglement between two magnon modes via two-tone driving of a superconducting qubit",
  "title_text": "Macroscopic entanglement between two magnon modes via two-tone driving of a superconducting qubit",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:37Z",
  "url": "https://research.draconitic.com/paper/0hykm2zvxfgwk",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/jtyx-xsgc",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}