{
  "abstract": "We study warped compactifications of eleven-dimensional supergravity on eight-manifolds to Minkowski or AdS vacua preserving $N=1$ supersymmetry in three dimensions. For backgrounds characterised by a local G$_2$ structure, we derive an off-shell real superpotential functional in terms of the internal geometry and fluxes without performing a finite Kaluza-Klein truncation. We obtain this expression in two independent ways: from the dimensional reduction of the gravitino variation and from the reduction of the eleven-dimensional gravitino action. We show that the critical-point equations, together with the vacuum value of the superpotential, are equivalent to the full set of supersymmetry conditions implied by the eleven-dimensional Killing spinor equations. When the local G$_2$ structure enhances to a global Spin(7) structure, our result reduces to the known superpotential for M-theory on Spin(7) manifolds.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.12439",
  "author_total": 2,
  "authors": [
    {
      "name": "Anthony Ashmore"
    },
    {
      "name": "Savdeep Sethi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fydx1a2eajy3s.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.12439",
  "fulltext_url": null,
  "id": "fydx1a2eajy3s",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.12439",
  "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": "W7221178872",
  "pdf_url": "https://arxiv.org/pdf/2610.12439",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fydx1a2eajy3s.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:54Z",
      "native_id": "2610.12439",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.12439"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "A real superpotential for M-theory on eight-manifolds",
  "title_text": "A real superpotential for M-theory on eight-manifolds",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:54Z",
  "url": "https://research.draconitic.com/paper/fydx1a2eajy3s",
  "venue": "arXiv",
  "versions": []
}