{
  "abstract": "In string compactifications, dilaton-like moduli always come paired with axions, and the two fields interact through a curved field-space metric. We study the cosmology of such an axio-dilaton system, in which the dilaton rolls down an exponential potential corrected by a polynomial prefactor and couples to a massless axion through the kinetic function $W=e^{-ξϕ_1/M_p}$. A dynamical systems analysis shows that the late-time attractor follows a non-geodesic trajectory in field space with equation of state $ω_ϕ=(λ-2ξ)/(λ+2ξ)$, so accelerated expansion is possible for steep potentials provided $ξ\\ggλ$. No physical fixed point is phantom. A Bayesian analysis with DESI DR2 BAO, binned Pantheon supernovae and Planck 2018 distance priors gives $λ\\gtrsim7$--$9$ and $\\log_{10}ξ\\gtrsim2.5$ at 95% confidence, together with a degeneracy between the two parameters. The model is slightly favoured over $Λ$CDM by current data, while the different polynomial corrections cannot yet be distinguished. This contribution is based on arXiv:2609.22539.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.34380",
  "author_total": 1,
  "authors": [
    {
      "name": "Mario Ramos-Hamud"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5gengbb6zsqyg.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.34380",
  "fulltext_url": null,
  "id": "5gengbb6zsqyg",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.34380",
  "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",
      "hep-ph"
    ],
    [
      "arxiv",
      "hep-th"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7223949711",
  "pdf_url": "https://arxiv.org/pdf/2610.34380",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-25",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5gengbb6zsqyg.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.34380",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.34380"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "Spiralling into Dark Energy: Axio-Dilaton Attractors in Light of Current Data",
  "title_text": "Spiralling into Dark Energy: Axio-Dilaton Attractors in Light of Current Data",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/5gengbb6zsqyg",
  "venue": "arXiv",
  "versions": []
}