{
  "abstract": "The gravitational field of a physical cosmic string is regular on the axis, curved across a finite vortex core, and only asymptotically conical. We test whether the bound-state spectrum of a transverse Dirac oscillator resolves this structure beyond the ideal-cone approximation. The fermion is treated as a test field on self-consistent Einstein--Abelian-Higgs vortex backgrounds, and the radial problem is cast as a generalized Hermitian eigenvalue problem. The numerical formulation is checked against the exact Minkowski and ideal-cone spectra and by independent shooting calculations. For a reference vortex family, the finite-core correction grows from the weak-confinement regime toward the percent level. When the normalized asymptotic cone is held fixed, the spectrum still varies with the measured Higgs-core radius, and the sampled backgrounds bracket a change of sign of the ground-state correction. The bound-state spectrum therefore contains information about the resolved core profiles that is not fixed by the asymptotic cone alone.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.20164",
  "author_total": 1,
  "authors": [
    {
      "name": "Edilberto O. Silva"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dp6963xz65zg4.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.20164",
  "fulltext_url": null,
  "id": "dp6963xz65zg4",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.20164",
  "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",
      "hep-th"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7213579018",
  "pdf_url": "https://arxiv.org/pdf/2609.20164",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dp6963xz65zg4.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:19Z",
      "native_id": "2609.20164",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.20164"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "Dirac oscillator in a self-gravitating cosmic string: confinement spectra beyond the conical approximation",
  "title_text": "Dirac oscillator in a self-gravitating cosmic string: confinement spectra beyond the conical approximation",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:19Z",
  "url": "https://research.draconitic.com/paper/dp6963xz65zg4",
  "venue": "arXiv",
  "versions": []
}