{
  "abstract": "We construct a Genesis scenario within the framework of a type-II minimally modified gravity. The background solution is past geodesically complete and approaches Minkowski spacetime in the asymptotic past. While the Hubble expansion rate grows, the matter sector satisfies the null-energy condition. Scalar perturbations are ghost-free and have no ultraviolet gradient instability, although the squared sound speed $c_\\mathcal{R}^2$ becomes negative within a finite infrared region in the Fourier space for a finite time interval. Numerical evolution, including superhorizon growth, yields a nearly scale-invariant, slightly red-tilted scalar spectrum over a broad region of parameter space. The tensor spectrum is blue, with a strongly suppressed tensor-to-scalar ratio. Finally, using the matter fluctuation $δχ$, whose asymptotic normalization is regular, we find that the background-dependent cubic couplings vanish in the far past at fixed nonzero momenta. The surviving matter--graviton and graviton self-interactions are Planck suppressed.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.37063",
  "author_total": 4,
  "authors": [
    {
      "name": "Alexander Ganz"
    },
    {
      "name": "Paul Martens"
    },
    {
      "name": "Shinji Mukohyama"
    },
    {
      "name": "Pavel Petrov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c78jr01fnam7t.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.37063",
  "fulltext_url": null,
  "id": "c78jr01fnam7t",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.37063",
  "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",
      "gr-qc"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7224129375",
  "pdf_url": "https://arxiv.org/pdf/2610.37063",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c78jr01fnam7t.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2610.37063",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.37063"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Genesis in Minimally Modified Gravity",
  "title_text": "Genesis in Minimally Modified Gravity",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/c78jr01fnam7t",
  "venue": "arXiv",
  "versions": []
}