{
  "annotation_id": "f692ae07-3001-4853-b7a8-7da177d86e6d",
  "date_created": "2026-02-17T05:53:19.967000Z",
  "date_modified": "2026-02-17T05:53:19.967000Z",
  "file_hash": "352ad89786923b773da789027a0b89d46b814bcddbd0b67b2406754db829b1df",
  "private": false,
  "record": {
    "abstract": "The pseudocomplex version of the FLRW model is presented within the framework of pseudocomplex General Relativity (pcGR). In this approach, dark energy arises as a geometric consequence of the pseudocomplex structure, leading to a time dependent Hubble parameter rather than a strictly constant H0. The relation between the tiderived and constrained using recent DESI BAO data. Fitting beta yields a best-fit value beta = 1.0426, corresponding to a deceleration parameter q = -0.9361 and a present day Hubble acceleration me derivative of the Hubble parameter and a single geometric parameter beta in the effective dark energy equation of state is derived and constrained using recent DESI BAO data. Fitting beta yields a best-fit value beta = 1.0426, corresponding to a deceleration parameter q = -0.9361 and a present day Hubble acceleration H0 sim 0.94 x10-17 (km/s2)/Mpc. Using the exact Sandage Loeb relation, the predicted redshift drift over 20 years for a source at z = 4 is Delta-v sim -11.1 cm/s, in close agreement with the Lambda CDM prediction. In pcGR, however, the non-vanishing H0 is a direct geometric prediction, providing a clear and testable target for future high-precision spectroscopic observations.",
    "arxiv_id": "2601.09593",
    "authors": [
      "L. Maghlaoui",
      "P. O. Hess",
      "F. Weber",
      "C. A. Zen vasconcellos"
    ],
    "categories": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "The pseudo-complex Friedmann Lemaitre Robertson Walker model and the time dependence of the Hubble constant",
    "url": "https://arxiv.org/abs/2601.09593",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8e5bc7b8-f451-4b04-8173-27e64a3ac27c",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}