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AdS2 from Type IIA on weak G2 manifolds

  • Niall T. Macpherson
  • Achilleas Passias
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Abstract

We present and study supersymmetric warped AdS2 × M7 × I solutions of Type IIA supergravity, where M7 is a weak G2 holonomy manifold. Locally, the solutions are characterized by a cubic polynomial. We distinguish two branches, Branch 1 and Branch 2, and analyze their global properties, taking flux quantization into account. At the endpoints of the interval I they exhibit either OF1-plane or O8/D8 type of singularities with Branch 1 allowing also for a Spin(7) cone. In the case of zero Romans mass, Branch 1 uplifts to eleven dimensions to AdS4 × M7 whereas Branch 2 uplifts to warped AdS3 × M7 × I with OM2-plane type of singularities.

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Cite

BibTeXRIS
BibTeX
@misc{macpherson2026ads2,
  title = {{AdS$_2$ from Type IIA on weak G$_2$ manifolds}},
  author = {Niall T. Macpherson and Achilleas Passias},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.27093},
  eprint = {2610.27093},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.27093},
}
RIS
TY  - UNPB
TI  - AdS_2 from Type IIA on weak G_2 manifolds
AU  - Niall T. Macpherson
AU  - Achilleas Passias
PY  - 2026
DA  - 2026/10/19
PB  - arXiv
DO  - 10.48550/arxiv.2610.27093
UR  - https://arxiv.org/abs/2610.27093
AB  - We present and study supersymmetric warped AdS_2 × M_7 × I solutions of Type IIA supergravity, where M_7 is a weak G_2 holonomy manifold. Locally, the solutions are characterized by a cubic polynomial. We distinguish two branches, Branch 1 and Branch 2, and analyze their global properties, taking flux quantization into account. At the endpoints of the interval I they exhibit either OF1-plane or O8/D8 type of singularities with Branch 1 allowing also for a Spin(7) cone. In the case of zero Romans mass, Branch 1 uplifts to eleven dimensions to AdS_4 × M_7 whereas Branch 2 uplifts to warped AdS_3 × M_7 × I with OM2-plane type of singularities.
ER  -