{"schema":"pubphys.bundle/1","record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"505ae764bcc3596377e9eac62ee43b0ffcec3ce3822820cfee09d938c5a9a5de","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["56cc7ade31462e333366da49a13d6111cdce10c8b6d453b2ea010ab5092006ce","ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b"],"salt":"d51574ab1229f174aa9483f376fc86f0b831a5db4703c7cbf8fbc5d133b9ff71","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"classification","assisted_by":[],"external_id":"qi.gravity-quantum.gme-interpretation","kind":"well-posed","literature_status":"contested","n":"2","parents":[],"plain":"The standard argument says a classical go-between cannot create entanglement, so seeing it would prove gravity quantum. A 2025 paper argues that classical gravity acting on quantum matter fields can still create some entanglement through virtual matter particles (short-lived intermediate states), so the inference is disputed.","posed_since":"2017","precise":"The LOCC argument (local operations and classical communication cannot create entanglement) assumes the gravitational mediator acts as a classical channel. Determine under which explicit assumptions (locality, field-theoretic matter, linearity) observed entanglement at the rate $\\phi = G m^2 t/(\\hbar d)$ excludes classical gravity, and compute the entanglement producible by semiclassical or stochastic classical gravity coupled to quantum-field matter, which Aziz and Howl find enters at higher order in G and grows with mass toward the Planck mass (about $2 \\times 10^{-5}$ g).","problem_ref":"56cc7ade31462e333366da49a13d6111cdce10c8b6d453b2ea010ab5092006ce","references":"","settled_by":"A theorem stating which classes of classical gravity models a given entanglement measurement excludes, with parameter regimes where classical contributions are provably negligible.","status_note":"Aziz and Howl (Nature 2025, arXiv:2510.19714) argued that classical gravity with quantum-field matter produces entanglement, reopening the interpretation of the proposed experiments.","title":"Does gravity-mediated entanglement prove the gravitational field is 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