{
  "abstract": "In this white paper, we highlight the importance of the ($1-10~{\\rm Hz}$) frequency range for laboratory tests of the quantum nature of gravity using the quantum gravity-induced entanglement of masses (QGEM) protocol. QGEM requires matter-wave interferometers with masses ($m\\sim10^{-15}-10^{-14}~{\\rm kg}$), brought within separations ($d\\sim30-50~μ{\\rm m}$), while maintaining spatial superpositions of ($1-20~μ{\\rm m}$) and coherence for ($τ\\sim 0.1 - 1~{\\rm s}$). These requirements make low-frequency environmental noise a central experimental challenge and place QGEM in a regime closely related to the low-frequency goals of the Einstein Telescope (ET) and the Cosmic Explorer (CE). In particular, QGEM is sensitive to relative acceleration noise (RAN) and to gravity-gradient noise (GGN) generated by seismic and other environmental mass-density fluctuations. For representative parameters $m=10^{-14}~{\\rm kg}$, $Δx=10~μ{\\rm m}$, and $τ=1~{\\rm s}$, the differential acceleration-noise amplitude spectral density must be suppressed well below the $10^{-15}~{\\rm m\\,s^{-2}/\\sqrt{Hz}}$ level to keep acceleration-induced dephasing below the relevant experimental scale. Achieving this level of low-frequency noise suppression is therefore a key requirement for QGEM and closely parallels the seismic and gravity-gradient noise challenges that ET and CE address.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.07422",
  "author_total": 121,
  "authors": [
    {
      "name": "Sougato Bose"
    },
    {
      "name": "Anupam Mazumdar"
    },
    {
      "name": "Marko Toros"
    },
    {
      "name": "Tian Zhou"
    },
    {
      "name": "Tadeusz Adach"
    },
    {
      "name": "Niayesh Afshordi"
    },
    {
      "name": "Agya Sewara Alam"
    },
    {
      "name": "Alexandre Arbey"
    },
    {
      "name": "Navdeep Arya"
    },
    {
      "name": "Simon Baier"
    },
    {
      "name": "Peter F Barker"
    },
    {
      "name": "Angelo Bassi"
    },
    {
      "name": "Ettore Bernardi"
    },
    {
      "name": "Lorenzo Braccini"
    },
    {
      "name": "Robert Brandenberger"
    },
    {
      "name": "Daniel Braun"
    },
    {
      "name": "Guri K Buza"
    },
    {
      "name": "Luigi Cacciapuoti"
    },
    {
      "name": "Carlo Cepollaro"
    },
    {
      "name": "Lin-Qing Chen"
    },
    {
      "name": "Yanbei Chen"
    },
    {
      "name": "Ralph Jason Costales"
    },
    {
      "name": "Marion Cromb"
    },
    {
      "name": "Alvaro de la Cruz-Dombriz"
    },
    {
      "name": "Catalina Curceanu"
    },
    {
      "name": "Shubhang Dadhich"
    },
    {
      "name": "Debarshi Das"
    },
    {
      "name": "Saurya Das"
    },
    {
      "name": "Pratika Dayal"
    },
    {
      "name": "Subhadeep De"
    },
    {
      "name": "Ema Dimastrogiovanni"
    },
    {
      "name": "Lajos Diosi"
    },
    {
      "name": "Or Dobkowski"
    },
    {
      "name": "Kemal Doner"
    },
    {
      "name": "Brian d'Urso"
    },
    {
      "name": "Gurudev Dutt"
    },
    {
      "name": "Shafaq Gulzar Elahi"
    },
    {
      "name": "Samira Elghaayda"
    },
    {
      "name": "Matteo Fadel"
    },
    {
      "name": "Samuel Fedida"
    },
    {
      "name": "Omer Feldman"
    },
    {
      "name": "Fabiano Feleppa"
    },
    {
      "name": "Ron Folman"
    },
    {
      "name": "Joshua Foo"
    },
    {
      "name": "Paolo Fragolino"
    },
    {
      "name": "Laurent Freidel"
    },
    {
      "name": "Giulio Gasbarri"
    },
    {
      "name": "Marco Genovese"
    },
    {
      "name": "Andrew Geraci"
    },
    {
      "name": "Menachem Givon"
    },
    {
      "name": "Cisco Gooding"
    },
    {
      "name": "Jonathan M.H Gosling"
    },
    {
      "name": "Piotr T Grochowski"
    },
    {
      "name": "David Groswasser"
    },
    {
      "name": "Mustafa Gundogan"
    },
    {
      "name": "Ekim Taylan Hanımeli"
    },
    {
      "name": "Bas Hensen"
    },
    {
      "name": "Dipankar Home"
    },
    {
      "name": "Richard Howl"
    },
    {
      "name": "Yonathan Japha"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5jsgkcb2x4fay.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.07422",
  "fulltext_url": null,
  "id": "5jsgkcb2x4fay",
  "issns": [],
  "landing_url": "https://hal.science/hal-05829803v1",
  "language": "en",
  "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",
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      "gr-qc"
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    [
      "openalex",
      "3103|Pulsars and Gravitational Waves Research"
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  "openalex": "W7220931151",
  "pdf_url": "https://arxiv.org/pdf/2610.07422",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5jsgkcb2x4fay.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:00Z",
      "native_id": "hal-05829803",
      "source": "hal",
      "url": "https://hal.science/hal-05829803v1"
    },
    {
      "first_seen": "2026-10-30T12:27:22Z",
      "native_id": "2610.07422",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.07422"
    }
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  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "White paper: 1-10 Hz matter-wave interferometer to test the spin entanglement witness for quantum gravity",
  "title_text": "White paper: 1-10 Hz matter-wave interferometer to test the spin entanglement witness for quantum gravity",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:22Z",
  "url": "https://research.draconitic.com/paper/5jsgkcb2x4fay",
  "venue": "HAL",
  "versions": []
}