{
  "annotation_id": "b9162c9d-3f50-4b1b-96a2-56d18c96188f",
  "date_created": "2026-03-02T18:01:55.802000Z",
  "date_modified": "2026-03-02T18:01:55.802000Z",
  "file_hash": "cbb9d4ca08b13620e3ecad2719bb1d09c7c3d7380d66f392787331897f1edf2e",
  "private": false,
  "record": {
    "abstract": "It is shown that a macroscopic superposition state of radiation, strongly\ninteracting with an ensemble of two-level atoms, is removed generating a\ncoherent state describing a classical radiation field, when the thermodynamic\nlimit is taken on the unitary evolution obtained by the Schroedinger equation.\nDecoherence appears as a dynamical effect in agreement with a recent proposal\n[M. Frasca, Phys. Lett. A 283, 271 (2001)]. To prove that this effect is quite\ngeneral, we show that this same behavior appears when a superposition of two\nFock number states is also considered. Higher order corrections are computed\nshowing that this result tends to become exact in the thermodynamic limit. It\nappears as a genuine example of intrinsic collapse of the wave function.",
    "arxiv_id": "quant-ph/0212119",
    "authors": [
      "Marco Frasca"
    ],
    "categories": [
      "quant-ph",
      "cond-mat",
      "gr-qc",
      "hep-th"
    ],
    "doi": "10.1088/0953-4075/36/13/307",
    "journal_ref": "J.Phys.B.At.Mol.Opt.Phys.36:2757-2766,2003",
    "title": "Dynamical disappearance of superposition states in the thermodynamic   limit",
    "url": "https://arxiv.org/abs/quant-ph/0212119"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3dbdb0b1-ed22-431a-ba7a-09e74e24eb7e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}