{
  "abstract": "Primordial magnetic fields (PMFs) are anticipated to be a cosmological candidate for generating a stochastic gravitational wave background (SGWB) through their anisotropic stress. In particular, if parity violation is present in the production of PMFs, it can induce a helical component in the PMFs, leading to circular polarization in the isotropic SGWB. In this study, we phenomenologically consider parity-violating inflationary magnetogenesis and compute the intensity and circular polarization of the SGWB for several assumed power spectra of helical PMFs. Using the planned sensitivity of the LISA-TAIJI network, we calculate the signal-to-noise ratio (SNR) and perform a Fisher forecast to assess the feasibility of constraining the parameters of helical PMFs. We conclude that it is possible to estimate the helical-to-non-helical power ratio~$r_H$ with $\\mathrm{SNR}^{V}>2$ if the PMF strength is $\\mathcal{B} \\gtrsim 10~\\mathrm{nG}$ ($50~\\mathrm{nG}$) in the case of the delta-function-type (scale-invariant-type) PMF spectrum. Our results offer a useful criterion that indicates the future observational limit on helical PMFs at the small scale $k_\\mathrm{LISA} \\approx 10^{12}~\\mathrm{Mpc}^{-1}$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.39208",
  "author_total": 2,
  "authors": [
    {
      "name": "Kazuya Furusawa"
    },
    {
      "name": "Hiroyuki Tashiro"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5sqm31b9ba746.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.39208",
  "fulltext_url": null,
  "id": "5sqm31b9ba746",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.39208",
  "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",
      "gr-qc"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7215083136",
  "pdf_url": "https://arxiv.org/pdf/2609.39208",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5sqm31b9ba746.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:49Z",
      "native_id": "2609.39208",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.39208"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Probing Helical Primordial Magnetic Fields via Chiral Gravitational Waves in the LISA-TAIJI Network",
  "title_text": "Probing Helical Primordial Magnetic Fields via Chiral Gravitational Waves in the LISA-TAIJI Network",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:49Z",
  "url": "https://research.draconitic.com/paper/5sqm31b9ba746",
  "venue": "arXiv",
  "versions": []
}