{
  "annotation_id": "d089ca91-6787-4b2c-8dc0-6635a5163987",
  "date_created": "2026-02-17T05:53:15.296000Z",
  "date_modified": "2026-02-17T05:53:15.296000Z",
  "file_hash": "8d1f5f64a3a444dc2bc64cd8266acfc4cc118ccb13a7566d8adfeed52e48f8f3",
  "private": false,
  "record": {
    "abstract": "We compute the full one-loop corrections to the primordial tensor power spectrum in an inflationary scenario with a non-minimally coupled spectator field, using the in-in formalism. We derive semi-analytic results for the scalar-sourced one-loop tensor spectrum and the effective tensor-to-scalar ratio, $r_{\\mathrm{eff}}$ . We consider two representative coupling functions: a localized Gaussian dip (Model G), which leads to moderate loop corrections, and a rapidly oscillatory coupling (Model O), which can yield much larger loop contributions. For Model G, we find a $\\mathcal{O}(1)$ correction to $r_{\\mathrm{eff}}$ while Model O can significantly enhance $r_{\\mathrm{eff}}$ by several orders of magnitude (relative to the tree-level value). We further calculate the energy density of primordial gravitational waves. Assuming that primordial black holes with mass $10^{-12}M_{\\odot}$ generated in this scenario, constitute all of the dark matter, we find that the results are several orders of magnitude lower than the sensitivities of Taiji/TianQin/LISA.",
    "arxiv_id": "2601.08675",
    "authors": [
      "Zhe Li",
      "Chen Yuan",
      "Qing-Guo Huang"
    ],
    "categories": [
      "astro-ph.CO",
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "One-Loop Tensor Power Spectrum from a Non-Minimally Coupled Spectator Field during Inflation",
    "url": "https://arxiv.org/abs/2601.08675",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "72c34ae4-dcde-4674-b979-e462c7255c36",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}