{
  "abstract": "We investigate the phase structure and gravitational-wave (GW) phenomenology of a cosmological first-order phase transition described by the finite-temperature effective potential $V(ϕ,T)=D(T^2-T_0^2)ϕ^2-ETϕ^3+λϕ^4/4$. We derive the critical temperature and the broken-phase order parameter and identify the dimensionless combination $E^2/(Dλ)$ that controls the critical-temperature shift. We then construct a dense numerical atlas containing $30\\,000$ parameter points and map the resulting transition parameters onto the characteristic GW frequency and peak amplitude. The scan resolves the multidimensional correlations among $T_*$, $α$, $β/H_*$, $v_w$, $f_{\\rm peak}$ and $Ω_{\\rm GW}^{\\rm peak}h^2$. The present analysis is phenomenological: $T_*$ is defined by the prescription $T_*=0.95T_c$, while $β/H_*$ and $v_w$ are treated as scan inputs. Consequently, the resulting GW signals are not interpreted as first-principles predictions. We identify the additional ingredients required for a predictive calculation, including the thermal bounce action, nucleation and percolation temperatures, the transition duration and a microscopic treatment of bubble-wall friction. The resulting framework provides a systematic numerical characterization of the connection between the phase structure of the finite-temperature potential and the corresponding phenomenological GW parameter space.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.12664",
  "author_total": 1,
  "authors": [
    {
      "name": "Gayatri Ghosh"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/89bc6cykpxr42.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.12664",
  "fulltext_url": null,
  "id": "89bc6cykpxr42",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.12664",
  "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-ph"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7212853900",
  "pdf_url": "https://arxiv.org/pdf/2609.12664",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-11",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/89bc6cykpxr42.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:07Z",
      "native_id": "2609.12664",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.12664"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Phase Structure and Gravitational-Wave Phenomenology of a Thermal First-Order Phase Transition",
  "title_text": "Phase Structure and Gravitational-Wave Phenomenology of a Thermal First-Order Phase Transition",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:07Z",
  "url": "https://research.draconitic.com/paper/89bc6cykpxr42",
  "venue": "arXiv",
  "versions": []
}