{
  "abstract": "We construct a static, spherically symmetric regular black hole with a Minkowski core, a non-extremal outer horizon, and a degenerate inner horizon with vanishing surface gravity. The spacetime exhibits two main features. First, in the large-mass regime with $$r_+=2M$$ r + = 2 M , the maximal Kretschmann scalar becomes nearly independent of the ADM mass and is mainly controlled by the inner-horizon radius $$r_-$$ r - , providing a simple sufficient condition for the curvature to remain sub-Planckian everywhere. Second, the effective cubic zero of the metric function replaces the standard exponential near-horizon amplification with power-law behavior. A massless scalar test field shows that the geometric blueshift factor grows as $$v^{3/2}$$ v 3 / 2 . Then, we use the double-null shell and Ori models to examine the corresponding effective mass dynamics. The nonlinear shell-crossing contribution decays at late times, while the Ori evolution with a Price-law ingoing flux keeps the internal Misner–Sharp mass bounded. In both descriptions, the late-time mass approaches $$r_-/2$$ r - / 2 . The same inner-horizon scale therefore controls the global curvature bound and the finite mass scale reached by the shell dynamics.",
  "abstract_shown": true,
  "affiliations": [
    "China West Normal University",
    "Chinese Academy of Sciences",
    "University of Chinese Academy of Sciences"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Zhong-Wen Feng",
      "orcid": "0000-0001-5962-8087"
    },
    {
      "affs": [
        0
      ],
      "name": "Hong-Lin Liu"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Yi Ling"
    },
    {
      "affs": [
        0
      ],
      "name": "Qing-Quan Jiang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bxfrs2t54f6xv.bib",
  "cited_by": 0,
  "doi": "10.1140/epjc/s10052-026-16504-3",
  "fulltext_url": "https://doi.org/10.1140/epjc/s10052-026-16504-3",
  "id": "bxfrs2t54f6xv",
  "issns": [
    "1434-6044",
    "1434-6052"
  ],
  "landing_url": "https://link.springer.com/article/10.1140/epjc/s10052-026-16504-3",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QB460-466"
    ],
    [
      "lcc",
      "QC770-798"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7161586707",
  "pdf_url": "https://link.springer.com/content/pdf/10.1140/epjc/s10052-026-16504-3.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/bxfrs2t54f6xv.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:04Z",
      "native_id": "10.1140/epjc/s10052-026-16504-3",
      "source": "crossref",
      "url": "https://link.springer.com/article/10.1140/epjc/s10052-026-16504-3"
    },
    {
      "first_seen": "2026-10-30T13:46:26Z",
      "native_id": "c16e6f2958604b3ea5dcf4f5273b78f3",
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      "url": "https://doi.org/10.1140/epjc/s10052-026-16504-3"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Black Holes and Theoretical Physics",
      "subfield": "high-energy"
    }
  ],
  "title": "Global curvature control in a regular black hole with Minkowski core and inner-extremal horizon",
  "title_text": "Global curvature control in a regular black hole with Minkowski core and inner-extremal horizon",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:46:26Z",
  "url": "https://research.draconitic.com/paper/bxfrs2t54f6xv",
  "venue": "The European Physical Journal C",
  "versions": [
    {
      "doi": "10.48550/arxiv.2605.15576",
      "pid": "0dv6jz56dv714",
      "relation": "preprint",
      "title": "Global curvature control in a regular black hole with Minkowski core and inner-extremal horizon",
      "venue": "arXiv"
    }
  ]
}