{
  "annotation_id": "d2ca3c17-fe65-4c65-a213-6b2de57476f5",
  "date_created": "2026-03-02T18:00:49.587000Z",
  "date_modified": "2026-03-02T18:00:49.587000Z",
  "file_hash": "3ee43c71d0234a070346e94711db6f3d62c32d0b8b13678fdc0fc2878a62e9ab",
  "private": false,
  "record": {
    "abstract": "This paper deals with the use of a magnetic levitation system as a part of a\nmulti-stage seismic attenuator for gravitational wave interferometric antennas.\nThe proposed configuration uses permanent magnets in attraction to balance the\nsuspended weight, plus a closed loop position control to obtain a stable\nlevitation. The system is analyzed using a MATLAB simulation code to compute\nthe forces exerted by extended magnets. The validity of this model has been\ntested by a comparison with the experimental data from a levitated suspension\nprototype.",
    "arxiv_id": "physics/0401163",
    "authors": [
      "Monica Varvella",
      "Enrico Calloni",
      "Luciano Di Fiore",
      "Leopoldo Milano",
      "Nicolas Arnaud"
    ],
    "categories": [
      "physics.ins-det",
      "astro-ph",
      "gr-qc"
    ],
    "doi": "10.1016/j.astropartphys.2004.01.002",
    "journal_ref": "Astropart.Phys.21:325-335,2004",
    "title": "Feasibility of a magnetic suspension for second generation Gravitational   Wave interferometers",
    "url": "https://arxiv.org/abs/physics/0401163"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ef9a81a8-38d2-41e5-a93c-be5cba6526ed",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}