{
  "abstract": "We compute the one-loop gauge-field two-point functions analytically in scalar QED on dS$_{d+1}$ for general dimension and scalar mass, using the EAdS reformulation of the in-in formalism arXiv:2007.09993. The Dirichlet EAdS gauge field acquires a Schwinger-type mass, with its longitudinal mode supplied by a composite of charged scalars obeying opposite boundary conditions, while the Neumann mode remains protected by gauge invariance. In dS, the Dirichlet correction induces an anomalous dimension $γ_J$ for the boundary current and modifies the late-time falloff of the electric field. This bulk calculation reproduces the boundary multiplet-recombination result of arXiv:2509.18888. Summing over the in-in contour branches gives the retarded dS bubble kernel, making direct contact with the Bros-Moschella framework. We establish a spectral Cutkosky rule that expresses the discontinuity of this kernel across the principal-series cut in the Casimir plane in terms of a two-particle cut, with both internal scalar lines placed on shell. Although the full bubble coefficient involves a ${}_7F_6$ hypergeometric function, the cut collapses to a closed product of Gamma functions and determines the complete non-local part of the kernel through a dispersion relation. Analytic continuation of the same cut reproduces the complete one-loop result for $γ_J$. In the complex Casimir plane, the loop-corrected Dirichlet photon appears as a pole on the second sheet and is therefore naturally interpreted as a dS resonance, or quasinormal mode, whose frequency is shifted at one loop.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.18782",
  "author_total": 4,
  "authors": [
    {
      "name": "Ernesto Bianchi"
    },
    {
      "name": "Sacha Ployet"
    },
    {
      "name": "Charlotte Sleight"
    },
    {
      "name": "Massimo Taronna"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/92qdhbpbz5wy3.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.18782",
  "fulltext_url": null,
  "id": "92qdhbpbz5wy3",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.18782",
  "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-th"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7221778781",
  "pdf_url": "https://arxiv.org/pdf/2610.18782",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-13",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/92qdhbpbz5wy3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:11Z",
      "native_id": "2610.18782",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.18782"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "Late-time electric screening in dS from EAdS loops",
  "title_text": "Late-time electric screening in dS from EAdS loops",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:11Z",
  "url": "https://research.draconitic.com/paper/92qdhbpbz5wy3",
  "venue": "arXiv",
  "versions": []
}