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M-theory on Manifolds of G_2 Holonomy and Type IIA Orientifolds

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arxiv hep-th/0103223 v2 pith:67YUOKLE submitted 2001-03-26 hep-th

Shamit Kachru , John McGreevy This is my paper · ORCID
classification hep-th
keywords orientifoldsdualitiesmanifoldsdifferentholonomym-theoryspecialtype
verification ladder T0 review T1 audit T2 compute T3 formal
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We demonstrate that M-theory compactifications on 7-manifolds of G_2 holonomy, which yield 4d N=1 supersymmetric systems, often admit at special loci in their moduli space a description as type IIA orientifolds. In this way, we are able to find new dualities of special IIA orientifolds, including dualities which relate orientifolds of IIA strings on manifolds of different topology with different numbers of wrapped D-branes. We also discuss models which incorporate, in a natural way, compact embeddings of gauge theory/gravity dualities similar to those studied in the recent work of Atiyah, Maldacena and Vafa.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. EFT (String) Tower Building

    hep-th 2026-07 conditional novelty 7.0 of 10

    Assuming the Integral Scaling Relation and the Emergent String Conjecture, the Kähler potential fixes the UV tower spectrum, and every admissible degree-≤7 tower polytope is a slice of the M-theory G2 polytope.

  2. A missing link: Brane networks and the Cobordism Conjecture

    hep-th 2026-05 unverdicted novelty 6.0 of 10

    Defects tied to discrete symmetries via bordism groups Ω^ξ_2(BG) and homology H_2(BG;Z) are codimension-two branes that participate in networks with junctions, expanding the Cobordism Conjecture's predictions in strin...

  3. Warped G$_2$-throats in IIA and uplift dSillusions

    hep-th 2025-05 conditional novelty 6.0 of 10

    Anti-D2 brane uplifting of classical AdS3 vacua in IIA on G2 orientifolds is forbidden by O6 tadpole constraints, so dS3 must rely on quantum corrections to no-scale Minkowski vacua.

  4. Warped G2 throats from deformed conifolds in IIA supergravity

    hep-th 2025-07 conditional novelty 5.0 of 10

    New non-singular IIA solutions with internal space (deformed conifold × S1)/Z2 provide warped G2 throats with finite 4-cycle or 3-cycle at the tip.

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