{
  "abstract": "Tests of gravity-induced entanglement have been proposed as a route to probing the quantum nature of gravity, but existing schemes rely on free-fall interferometry of massive spatial superpositions, imposing severe experimental constraints. We show that systems exhibiting effectively inertial dynamics in the short-time regime reproduce the same gravitational phase accumulation responsible for entanglement generation. Deviations from the free-fall phase enter at order $(τ/T)^2$, where $τ$ is the interaction timescale and $T$ is the characteristic period of the constrained motion. We analyse a representative mechanically constrained implementation using carbon nanotube pendula and show that the resulting correction to the entangling phase remains small in experimentally relevant regimes, leading to a negligible modification of the interference visibility used to certify entanglement. These results demonstrate that gravity-induced entanglement protocols extend beyond free-fall implementations to a broader class of constrained dynamical systems, complementing existing proposals for experimental realisations of the Bose-Marletto-Vedral protocol.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Rev. A 114, 032221 (2026)",
  "arxiv": "2605.00967",
  "author_total": 1,
  "authors": [
    {
      "name": "Hollis Williams"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3w69629nx6enn.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.00967",
  "fulltext_url": null,
  "id": "3w69629nx6enn",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.00967",
  "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",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2605.00967",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3w69629nx6enn.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:12Z",
      "native_id": "2605.00967",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.00967"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Gravity-induced entanglement under constrained dynamics",
  "title_text": "Gravity-induced entanglement under constrained dynamics",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:12Z",
  "url": "https://research.draconitic.com/paper/3w69629nx6enn",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/pg7l-f26t",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}