{
  "annotation_id": "d109f09f-06e6-4007-b2ea-6696db495f07",
  "date_created": "2026-03-02T18:01:38.571000Z",
  "date_modified": "2026-03-02T18:01:38.571000Z",
  "file_hash": "7ff9218387328909a634bc2e86b420090aeb301a3f748fc2e20f24af6dddeb22",
  "private": false,
  "record": {
    "abstract": "The localization length for the center of mass motion of a matter lump,\ninduced by gravitation, is obtained, without using any phenomenological\nconstants. Its dependence from mass and volume is consistent both with unitary\nevolution of microscopic particles and with the classical behavior of\nmacroscopic bodies required to account for wave function collapse in quantum\nmeasurements, the transition between the two regimes being rather sharp. The\ngravitational interaction of nonrelativistic matter is modelled by a Yukawa\nHamiltonian with vanishing pion mass, no gravitational background is needed and\nthe only hypothesis consists in assuming unentanglement between matter and the\nYukawa field.",
    "arxiv_id": "quant-ph/0007078",
    "authors": [
      "Sergio De Filippo"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Gravitationally induced transition to classical behavior above 10^10   proton masses",
    "url": "https://arxiv.org/abs/quant-ph/0007078"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "18dd85c5-f1a6-4f7a-990c-597a84de006c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}