{
  "abstract": "We study the quasinormal modes (QNMs) of Type II perturbations for dilaton-Euler-Heisenberg (dEH) black holes. These perturbations consist of coupled even-parity gravitational and dilaton perturbations together with odd-parity electromagnetic perturbations. The background is described by mass $M$, magnetic charge $Q_m$, and dilaton coupling difference $ζ=α-β$ to the Euler-Heisenberg term. To find the QNM frequencies, we need to find the parameter space of $(ζ, Q_m/M)$ that is free from vector ghosts. For the $\\ell=1$ mode, the radiative block couples the dilaton and axial electromagnetic amplitudes, whereas the $\\ell=2$ mode also contains metric amplitudes, so the frequencies are obtained from matrix-valued boundary-value problems. We calculate QNM frequencies for the fundamental ($n=0$) branch with direct integration and the Chebyshev pseudospectral method, and compare the two computations wherever their charge intervals overlap. We find that the $\\ell=1,2$ modes in the $n=0$ branch remain damped over the ghost-free parameter domain, supporting the stability of dEH black holes against Type II perturbations. The Type I sector will be presented elsewhere; no claim is made here about that sector, higher multipoles, or overtones.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.28928",
  "author_total": 4,
  "authors": [
    {
      "name": "Sheng-Yuan Li"
    },
    {
      "name": "Yun Soo Myung"
    },
    {
      "name": "De-Cheng Zou"
    },
    {
      "name": "Yu-Xuan Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cr8t5svz6ba0t.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.28928",
  "fulltext_url": null,
  "id": "cr8t5svz6ba0t",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.28928",
  "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": "W7214275741",
  "pdf_url": "https://arxiv.org/pdf/2609.28928",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-24",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cr8t5svz6ba0t.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:24:11Z",
      "native_id": "2609.28928",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.28928"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Quasinormal modes of type II-perturbation for dilaton-Euler-Heisenberg black holes",
  "title_text": "Quasinormal modes of type II-perturbation for dilaton-Euler-Heisenberg black holes",
  "type": "preprint",
  "updated_at": "2026-10-30T12:24:11Z",
  "url": "https://research.draconitic.com/paper/cr8t5svz6ba0t",
  "venue": "arXiv",
  "versions": []
}