{
  "annotation_id": "71a52dbc-3666-49f1-aa7c-1a234adc38f4",
  "date_created": "2026-03-02T18:02:40.985000Z",
  "date_modified": "2026-03-02T18:02:40.985000Z",
  "file_hash": "21a1d6c00dd5d60d365cdb2580b48fca5c8d433913bda005eff70ecbfb570892",
  "private": false,
  "record": {
    "abstract": "We illustrate the description of correlated subsystems by studying the simple\ntwo-body Hydrogen atom. We study the entanglement of the electron and proton\ncoordinates in the exact analytical solution. This entanglement, which we\nquantify in the framework of the density matrix formalism, describes\ncorrelations in the electron-proton motion.",
    "arxiv_id": "quant-ph/9709052",
    "authors": [
      "Paolo Tommasini",
      "Eddy Timmermans",
      "A. F. R. de Toledo Piza"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1119/1.18977",
    "title": "The Hydrogen Atom as an Entangled Electron-Proton System",
    "url": "https://arxiv.org/abs/quant-ph/9709052"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c939d052-40be-4863-8a6f-0720019251ca",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}