{
  "annotation_id": "ac7632d8-2f98-4586-888e-d3d9cca0369b",
  "date_created": "2026-03-02T18:00:29.219000Z",
  "date_modified": "2026-03-02T18:00:29.219000Z",
  "file_hash": "00acde8a2dce78560e9bdd787a5e8eeca127e8cdef864887730d473a3e768889",
  "private": false,
  "record": {
    "abstract": "Various models are under consideration with metric type flat FRW whose\nenergy-momentum tensor is described by a perfect fluid whose generic equation\nstate and taking into account the conservation principle, but considering some\nof the constants as variable. A set of solutions through dimensional analysis\nis trivially found. The numeric calculations carried out show that the results\nobtained are not discordant with those presently observed for cosmological\nparameters. However, the model seems irreconcilable with electromagnetic and\nquantum quantities. This makes us think that we are working with faulty\nhypothesis from the start",
    "arxiv_id": "physics/0002046",
    "authors": [
      "J. A. Belinchon"
    ],
    "categories": [
      "physics.gen-ph"
    ],
    "title": "Cosmological Models with Some Variable Constant",
    "url": "https://arxiv.org/abs/physics/0002046"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "12a5e860-7ecc-4a38-8e0e-03b38826fb24",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}