{
  "abstract": "We examine a Planck-scale regular black-hole remnant in neutron-star matter using a T-duality-inspired effective geometry and explicitly separate geometrical results from assumptions about absorption and emission. Within the static family, the surface-gravity temperature grows as $(M-M_{\\rm ext})^{1/2}$ after a small mass increase. A constant-greybody Stefan--Boltzmann approximation gives a Hawking power proportional to $(M-M_{\\rm ext})^2$ and can produce a stable lower balance point and an unstable growth threshold under stated hypotheses. For $l_0=\\ell_{\\rm Pl}$, however, the formal lower equilibrium has an excess mass of only $10^{-45}$--$10^{-46}\\,\\mathrm{kg}$ for order-unity absorption efficiency, so the canonical description is inconsistent with individual neutron captures. For a fiducial area-scale absorption cross section with unit coefficient, the mean capture interval is $5.4\\times10^8\\,\\mathrm{yr}$ and the initial nonradiating growth timescale is $9.1\\times10^{27}\\,\\mathrm{yr}$. Under this assumption, a Planck-mass remnant inside a neutron star is therefore effectively inert and, without additional feeding, cannot destroy the star within the age of the Universe. A stationary capture--relaxation state additionally requires an effective microscopic emission law; it is not established by zero temperature alone. Hydrodynamic accretion requires control of wave effects and a mean-free-path criterion; its onset corresponds to masses of order $10^{11}$--$10^{12}\\,\\mathrm{kg}$ for representative matter parameters. Direct zero-point-length corrections there are negligible, of order $10^{-40}$ at a femtometre. We discuss conditional growth thresholds, critical slowing near an unstable balance, dark-matter feeding, angular-momentum transfer, and the requirements for neutron-star survival constraints.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.10589",
  "author_total": 2,
  "authors": [
    {
      "name": "Kimet Jusufi"
    },
    {
      "name": "Francisco S. N. Lobo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/98hzq3afvd9s4.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.10589",
  "fulltext_url": null,
  "id": "98hzq3afvd9s4",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.10589",
  "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",
      "gr-qc"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7221107995",
  "pdf_url": "https://arxiv.org/pdf/2610.10589",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/98hzq3afvd9s4.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:54Z",
      "native_id": "2610.10589",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.10589"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Planck-scale black hole remnants inside neutron stars",
  "title_text": "Planck-scale black hole remnants inside neutron stars",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:54Z",
  "url": "https://research.draconitic.com/paper/98hzq3afvd9s4",
  "venue": "arXiv",
  "versions": []
}