{
  "abstract": "We construct a maximally supersymmetric Type IIB background in signature $(5,5)$ on the real ten-manifold underlying complex $\\mathrm{AdS}_5$. The spacetime is diffeomorphic to $T^*S^5$ and carries the invariant metric $G=\\mathrm i(\\bar q-q)$, where $q$ is the holomorphic constant-curvature metric. The real five-form $F_5=(4\\mathrm i/L)(Ω-\\barΩ)$, built from its normalized volume form, is self-dual, and its stress tensor supports this scalar-flat, non-Einstein metric. We derive these fields from the most general $\\mathrm{SL}(4,\\mathbb C)$-invariant metric and five-form ansatz: self-duality and the Einstein equation fix their phases up to the overall scale, orientation, and flux sign. The fields obey the reality conditions of the untwisted $\\mathrm{IIB}_5$ theory. The holomorphic coframe makes the supercovariant curvature cancellation explicit, and flat transport gives thirty-two global real Killing spinors. Their Killing superalgebra is the factor-exchanging real form of $\\mathfrak{psl}(4|4,\\mathbb C)$, and we identify the corresponding supercoset.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.21783",
  "author_total": 1,
  "authors": [
    {
      "name": "Brenno Carlini Vallilo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dvtp0yzre7kr9.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.21783",
  "fulltext_url": null,
  "id": "dvtp0yzre7kr9",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.21783",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2609.21783",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-18",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dvtp0yzre7kr9.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:03Z",
      "native_id": "2609.21783",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.21783"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "A Split-Signature Type IIB Background on $\\mathrm{AdS}_{5,\\mathbb C}$",
  "title_text": "A Split-Signature Type IIB Background on AdS_5,ℂ",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:03Z",
  "url": "https://research.draconitic.com/paper/dvtp0yzre7kr9",
  "venue": "arXiv",
  "versions": []
}