{
  "abstract": "We investigate cosmological phase transitions and stochastic gravitational-wave signals in the Manohar-Wise model extended by a complex scalar singlet. Spontaneous breaking of a discrete Z3 symmetry produces domain walls, whose subsequent annihilation is driven by a small explicit symmetry-breaking bias. Subject to theoretical and experimental constraints, we study two thermal histories: a one-step strong first-order electroweak phase transition satisfying the baryon-number preservation criterion, and a two-step history whose first transition is a first-order transition along the singlet direction, leaving electroweak symmetry unbroken. We estimate the gravitational-wave contributions from sound waves, magnetohydrodynamic turbulence, and domain-wall annihilation. Within the adopted approximations, the phase-transition signals of the selected benchmarks peak at approximately 10^-3 -10^-2 Hz and overlap the projected sensitivity regions of space-based observatories such as LISA, TianQin, and BBO. Choosing the vacuum-energy bias to fix the domain-wall peak at approximately 2x10^-9 Hz, we find that the larger domain-wall tensions of the two-step benchmarks yield signals reaching the projected SKA sensitivity, whereas the one-step sample remains below the pulsar-timing sensitivities considered. These results illustrate the complementarity of millihertz and nanohertz gravitational-wave observations in probing phase transitions and discrete-symmetry breaking in this model.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.39781",
  "author_total": 4,
  "authors": [
    {
      "name": "Benhong Mei"
    },
    {
      "name": "Yabo Dong"
    },
    {
      "name": "Jun Fan"
    },
    {
      "name": "Jingya Zhu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cdt0xhk7p0ptc.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.39781",
  "fulltext_url": null,
  "id": "cdt0xhk7p0ptc",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.39781",
  "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|Pulsars and Gravitational Waves Research"
    ]
  ],
  "openalex": "W7215068875",
  "pdf_url": "https://arxiv.org/pdf/2609.39781",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cdt0xhk7p0ptc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:49Z",
      "native_id": "2609.39781",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.39781"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Gravitational waves in the complex-singlet-extended Manohar-Wise model",
  "title_text": "Gravitational waves in the complex-singlet-extended Manohar-Wise model",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:49Z",
  "url": "https://research.draconitic.com/paper/cdt0xhk7p0ptc",
  "venue": "arXiv",
  "versions": []
}