{
  "abstract": "We study a string-motivated theoretical prior on the quintessential dark energy model with exponential potential, \\( V(ϕ) = V_0 e^{-λϕ} \\), allowing for non-zero spatial curvature. First, we formulate the corresponding dynamical system and investigate its cosmological evolution numerically, illustrating the phase-space behaviour and the influence of curvature on the background dynamics. In open universes (\\( Ω_k > 0 \\)), it has been suggested that a curvature-related fixed point may support accelerated expansion even for relatively steep potentials compatible with swampland considerations. Next, we explicitly impose swampland-motivated priors on the slope parameter $λ$, restricting it to values consistent with the de Sitter conjecture that excludes the (curved) $Λ$CDM limit. Furthermore, we restrict our considerations to the range of field excursion that is consistent with the swampland distance conjecture. Our primary interest is the possibility that such theoretically-motivated priors may shift values of cosmological parameters inferred by observational data, compared with the standard analysis based on theory-agnostic priors such as a sufficiently wide flat prior. We examine this possibility using a combination of Planck CMB data, DESI BAO measurements, and recent Type Ia supernova samples, performing a Bayesian inference of the model parameters. Our analysis indicates that the swampland-motivated prior mildly shifts the values of $Ω_k$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: JCAP09(2026)016",
  "arxiv": "2605.22362",
  "author_total": 3,
  "authors": [
    {
      "name": "Simran Arora"
    },
    {
      "name": "Hun Jang"
    },
    {
      "name": "Shinji Mukohyama"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a7cpjd8hqfn2x.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.22362",
  "fulltext_url": null,
  "id": "a7cpjd8hqfn2x",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.22362",
  "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"
    ],
    [
      "arxiv",
      "hep-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2605.22362",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/a7cpjd8hqfn2x.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:16Z",
      "native_id": "2605.22362",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.22362"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "Constraining Spatial Curvature with Priors from Swampland Conjectures",
  "title_text": "Constraining Spatial Curvature with Priors from Swampland Conjectures",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:16Z",
  "url": "https://research.draconitic.com/paper/a7cpjd8hqfn2x",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1088/1475-7516/2026/09/016",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}