{
  "abstract": "We investigate whether finite-density QCD matter can provide the stress-energy needed to regularize the center of a spherically symmetric black hole collapse. In a generalized Vaidya geometry, the field equations impose a vacuum-like radial pressure; we therefore model the QCD sector phenomenologically by identifying the transverse pressure with the effective QCD pressure. This is neither an isotropic equilibrium treatment nor a first principles simulation of nonequilibrium collapse. Local energy-momentum conservation is used to reconstruct radial temperature, density, and mass profiles for two QCD-inspired equations of state: a finite-chemical-potential chiral model and a finite-density mean-field quark-gluon-plasma model. Although the chiral model admits an exact Lambert-function solution, its physical high-temperature branch has a non-integrable central density. The mean-field model also yields singular temperature and density profiles. Neither produces the cubic near-center mass scaling required for finite curvature. More generally, regularity under the transverse null energy condition uniquely demands a vacuum-like relation between transverse pressure and energy density, which neither QCD closure approaches. Thus, finite quark chemical potential alters the phase-transition thermodynamics but does not generate a self-regularizing core in this framework. Positive-energy mixtures of baryonic matter and radiation also fail to provide the required stress. A smooth matching to an inner de Sitter-like component illustrates the additional short-distance physics needed.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: JCAP09(2026)029",
  "arxiv": "2605.27170",
  "author_total": 3,
  "authors": [
    {
      "name": "G. Lambiase"
    },
    {
      "name": "A. Övgün"
    },
    {
      "name": "V. Vertogradov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8ft5xw2j2z6j6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.27170",
  "fulltext_url": null,
  "id": "8ft5xw2j2z6j6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.27170",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.HE"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2605.27170",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-18",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8ft5xw2j2z6j6.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T06:21:23Z",
      "native_id": "2605.27170",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.27170"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    }
  ],
  "title": "Can finite-density QCD matter support a regular black hole core?",
  "title_text": "Can finite-density QCD matter support a regular black hole core?",
  "type": "preprint",
  "updated_at": "2026-11-10T06:21:23Z",
  "url": "https://research.draconitic.com/paper/8ft5xw2j2z6j6",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1088/1475-7516/2026/09/029",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}