{
  "abstract": "It is conventionally believed that the Stochastic Gravitational-Wave Background (SGWB) from inflation provides information about the earliest universe. However, in this Letter, we present a different picture. Our analysis starts from the observation that the inflation-predicted spectrum implies gravitons reside in high-occupation states, which significantly enhances their self-interactions and triggers rapid thermalization. We show that approximately $80\\%$ of the primordial gravitons participate in this thermalization, forming a Bose--Einstein distribution and thereby erasing the primordial information. Evaluated using typical inflation parameters, this thermalized spectrum yields a present-day peak frequency of $f_{0, \\text{peak}}^{(\\text{th})} \\sim 1.4 \\times 10^8 \\, \\mathrm{Hz}$ in the hundred-megahertz band with a peak amplitude of $Ω_{0, \\text{peak}}^{(\\text{th})} \\sim 3.5 \\times 10^{-13}$. Due to the sharp drop-off away from the peak, the resulting spectrum lies beyond the reach of low-frequency observatories like PTAs, LISA, and LIGO, but remains uniquely accessible to high-frequency detectors such as microwave cavity resonators and dielectric haloscopes.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.20325",
  "author_total": 4,
  "authors": [
    {
      "name": "Hongguang Zhang"
    },
    {
      "name": "Zhengyang Qiu"
    },
    {
      "name": "Sirui Wang"
    },
    {
      "name": "Jiayi Wei"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5q09g7mqaaph2.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.20325",
  "fulltext_url": null,
  "id": "5q09g7mqaaph2",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.20325",
  "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",
      "astro-ph.CO"
    ],
    [
      "arxiv",
      "hep-th"
    ],
    [
      "openalex",
      "3103|Pulsars and Gravitational Waves Research"
    ]
  ],
  "openalex": "W7222170028",
  "pdf_url": "https://arxiv.org/pdf/2610.20325",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5q09g7mqaaph2.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:31Z",
      "native_id": "2610.20325",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.20325"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "Thermalization of the Primordial Stochastic Gravitational-Wave Background",
  "title_text": "Thermalization of the Primordial Stochastic Gravitational-Wave Background",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:31Z",
  "url": "https://research.draconitic.com/paper/5q09g7mqaaph2",
  "venue": "arXiv",
  "versions": []
}