{
  "abstract": "We analytically study the peak statistics of an amplitude ensemble to identify the local mechanism responsible for peak repulsion. Our analytical approaches show that a smooth, nondegenerate ensemble of sufficiently differentiable amplitudes exhibits quartic nearest-neighbor repulsion, $p_{\\rm nn}(S)\\sim S^4$, where $S$ is the spacing between adjacent peaks. We verify this prediction numerically for the tree-level highly excited string scattering amplitudes. Interestingly, we find the quartic repulsion to be robust by varying both the underlying ensemble and the amplitude functions, whereas a tunable cusp model shows that weakening differentiability changes the strength of the repulsion. Peak repulsion therefore defines a local universality class that is not unique to string theory and may occur in amplitude ensembles in other theories.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.13240",
  "author_total": 2,
  "authors": [
    {
      "name": "Pallab Basu"
    },
    {
      "name": "Anurag Sarkar"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b30gmsjqs93nm.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.13240",
  "fulltext_url": null,
  "id": "b30gmsjqs93nm",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.13240",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-th"
    ],
    [
      "openalex",
      "3109|Quantum chaos and dynamical systems"
    ]
  ],
  "openalex": "W7221554564",
  "pdf_url": "https://arxiv.org/pdf/2610.13240",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/b30gmsjqs93nm.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:28:36Z",
      "native_id": "2610.13240",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.13240"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "The origin of amplitude chaos and strings",
  "title_text": "The origin of amplitude chaos and strings",
  "type": "preprint",
  "updated_at": "2026-10-30T12:28:36Z",
  "url": "https://research.draconitic.com/paper/b30gmsjqs93nm",
  "venue": "arXiv",
  "versions": []
}