{
  "abstract": "We study superconformal indices in the presence of line operators in S-fold theories. We consider two types of lines, realized by fundamental strings and fivebranes, respectively, in AdS$_5 \\times S^5/\\mathbb{Z}_k$. For fundamental lines, we analyze the corresponding indices including finite-$N$ corrections arising from giant graviton configurations. For $k=2$, we compare the holographic results with line operator indices in $\\mathcal{N}=4$ super Yang-Mills theories with orthogonal gauge groups. For $k=3,4$ and $6$, we focus on the rank $2$ case, in which the supersymmetry is enhanced to ${\\cal N}=4$, and compare them with the corresponding Wilson-'t Hooft line operator indices. In both cases, we find improved agreement once giant graviton contributions are included. For line operators realized by fivebranes, after confirming agreement for $k=2$, we construct BPS configurations for $k\\geq 3$ explicitly using fivebrane junctions and derive the indices in the large $N$ limit by the mode analysis on the fivebrane junctions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.29067",
  "author_total": 3,
  "authors": [
    {
      "name": "Yosuke Imamura"
    },
    {
      "name": "Masato Inoue"
    },
    {
      "name": "Akihiro Sei"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/90tks2038c3ed.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.29067",
  "fulltext_url": null,
  "id": "90tks2038c3ed",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.29067",
  "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": "W7172283454",
  "pdf_url": "https://arxiv.org/pdf/2607.29067",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/90tks2038c3ed.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "2607.29067",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.29067"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "Line operator indices of S-fold theories",
  "title_text": "Line operator indices of S-fold theories",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:22Z",
  "url": "https://research.draconitic.com/paper/90tks2038c3ed",
  "venue": "arXiv",
  "versions": []
}