{
  "abstract": "Thermogravity offers a novel approach to cosmic acceleration, deriving trace-free gravitational equations and matter non-conservation from thermodynamic processes in spacetime. We extend this framework towards thermocosmology by introducing a running non-conservation scale $L_2(H)$, while restricting non-conservation to cold dark matter. We investigate two prescriptions, namely a Hubble-proportional rate and an inverse-Hubble running model, deriving their cosmological dynamics and effective geometric dark-energy description. The first admits an exact analytical solution and is related to quadratic running-vacuum cosmologies, while the second approaches standard matter dilution at early times and allows reversals in the direction of energy exchange. Interestingly, the reconstructed geometric dark energy can exhibit quintessence-like and phantom-like behavior, including smooth crossings of the phantom divide, without introducing a phantom field or superacceleration. A unified dynamical-system analysis reveals distinct matter-era critical configurations and a continuous family of de Sitter solutions that are transversely attracting under suitable conditions. Confronting both models with Pantheon+ Type Ia supernovae, cosmic chronometers, and DESI DR2 baryon acoustic oscillations, we find a mild preference for positive present-day matter non-conservation. The Akaike information criterion slightly favors the thermogravity scenarios, whereas the Bayesian information criterion favors the simpler $Λ$CDM model. Thus, running thermocosmology provides a viable framework for nontrivial effective dark-energy dynamics.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.41780",
  "author_total": 1,
  "authors": [
    {
      "name": "Emmanuel N. Saridakis"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0ctdwa6976267.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.41780",
  "fulltext_url": null,
  "id": "0ctdwa6976267",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.41780",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.CO"
    ],
    [
      "arxiv",
      "gr-qc"
    ],
    [
      "arxiv",
      "hep-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.41780",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0ctdwa6976267.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:21:15Z",
      "native_id": "2610.41780",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.41780"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "From thermogravity to thermocosmology with a running non-conservation scale",
  "title_text": "From thermogravity to thermocosmology with a running non-conservation scale",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:51Z",
  "url": "https://research.draconitic.com/paper/0ctdwa6976267",
  "venue": "arXiv",
  "versions": []
}