{
  "abstract": "A bstract : We study the late-time behaviour of nonlinear perturbations of Schwarzschild-AdS ₄ black branes and show that real-analytic initial data generically enter a regime controlled by the large- k tail of the quasinormal mode spectrum { ω k n }. Using the asymptotic scaling Im ω k n ~ k −1/5 of the planar AdS ₄ black brane, we derive a universal prediction that boundary observables decay in a stretched-exponential manner, specifically as exp(− c t 5/6 ) up to a mild polynomial prefactor. Fully nonlinear numerical evolutions employing Fourier spectral and discontinuous Galerkin methods confirm this behaviour for small black holes and show consistent scaling — after suppressing long-lived low- k modes — for larger ones. These results indicate that stretched-exponential decay with exponent 5 / 6 is a robust feature of AdS ₄ gravitational dynamics with real-analytic data, arising from geometric-optics physics rather than hydrodynamic modes.",
  "abstract_shown": true,
  "affiliations": [
    "University of Cambridge"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "John R. V. Crump",
      "orcid": "0000-0003-1673-2970"
    },
    {
      "affs": [
        0
      ],
      "name": "Jorge E. Santos",
      "orcid": "0000-0002-4199-4190"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/18y3fq3yx23ds.bib",
  "cited_by": 0,
  "doi": "10.1007/jhep10(2026)044",
  "fulltext_url": null,
  "id": "18y3fq3yx23ds",
  "issns": [
    "1029-8479"
  ],
  "landing_url": "https://link.springer.com/10.1007/JHEP10(2026)044",
  "language": null,
  "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": [
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7161782735",
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/JHEP10(2026)044.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-05",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/18y3fq3yx23ds.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:01Z",
      "native_id": "10.1007/jhep10(2026)044",
      "source": "crossref",
      "url": "https://link.springer.com/10.1007/JHEP10(2026)044"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Black Holes and Theoretical Physics",
      "subfield": "high-energy"
    }
  ],
  "title": "After the fluid: subexponential decay in AdS4",
  "title_text": "After the fluid: subexponential decay in AdS4",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:01Z",
  "url": "https://research.draconitic.com/paper/18y3fq3yx23ds",
  "venue": "Journal of High Energy Physics",
  "versions": []
}