{
  "abstract": "We present evidence that ten-dimensional type IIB string theory orbifolded by the $\\mathbb{Z}_3$ duality symmetry at the strong-coupling fixed point $τ=\\exp(2πi/3)$ defines a consistent theory. Motivated by its F-theory dual description and its duality with M-theory in nine dimensions and type IIA string theory in eight dimensions, we argue that the resulting theory is a ten-dimensional chiral non-supersymmetric theory with a discrete gauge symmetry whose bosonic part is the automorphism group of the Narain lattice $Γ^{2,2}(A_2)$ ($S_3 \\times S_3 \\times \\mathbb{Z}_2$). We further identify the ten-dimensional tachyon fields with the corresponding Narain moduli. Gauge anomalies cancel nontrivially through a topological Green-Schwarz mechanism involving a $\\mathbb{Z}_3$-valued two-form gauge symmetry: the ten-dimensional lift of the familiar zero-form orbifold quantum symmetry in the eight-dimensional type IIA description.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.20915",
  "author_total": 2,
  "authors": [
    {
      "name": "Zihni Kaan Baykara"
    },
    {
      "name": "Cumrun Vafa"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/10yyhkpzw2e93.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.20915",
  "fulltext_url": null,
  "id": "10yyhkpzw2e93",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.20915",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-th"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7213943229",
  "pdf_url": "https://arxiv.org/pdf/2609.20915",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-20",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/10yyhkpzw2e93.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:04Z",
      "native_id": "2609.20915",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.20915"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "A Type IIB Dualifold",
  "title_text": "A Type IIB Dualifold",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:04Z",
  "url": "https://research.draconitic.com/paper/10yyhkpzw2e93",
  "venue": "arXiv",
  "versions": []
}