{
  "annotation_id": "d421d006-e828-4626-83f0-d5bfbaa949af",
  "date_created": "2026-02-17T05:53:11.404000Z",
  "date_modified": "2026-02-17T05:53:11.404000Z",
  "file_hash": "df94b0322239166b92a2febff08b0698d776e86470cfc6f83a63b0e151038d63",
  "private": false,
  "record": {
    "abstract": "We consider a stationary quantum system consisting of two non-interacting yet entangled subsystems, $\\Xi$ and $\\Gamma$. We identify a quantum theory characterizing $\\Xi$ such that, in the quantum-to-classical crossover of the composite system, $\\Gamma$ behaves as a test particle within the gravitational field of a Schwarzschild Black Hole (SBH) near its event horizon. We then show that this same quantum theory naturally provides a representation of $\\Xi$ in terms of bosonic modes, whose features match those of the Hawking radiation; this facilitates the establishment of precise relations between the phenomenological parameters of the SBH and the microscopic details of the quantum model for $\\Xi$. Finally, we recognize that the conditions used to characterize $\\Gamma$ and $\\Xi$ coincide with those required by the Page and Wootters mechanism for identifying an evolving system and an associated clock. This leads us to discuss how the quantum model for $\\Xi$ endows the SBH with all the characteristics of a \"perfect\" clock.",
    "arxiv_id": "2601.07437",
    "authors": [
      "Alessandro Coppo",
      "Nicola Pranzini",
      "Paola Verrucchi"
    ],
    "categories": [
      "quant-ph",
      "gr-qc",
      "hep-th",
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Quantum model for black holes and clocks",
    "url": "https://arxiv.org/abs/2601.07437",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b1fa16db-eed9-4ecf-821d-0712b0394294",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}