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No-scale and scale-separated flux vacua from IIA on G2 orientifolds

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arxiv 2005.05246 v2 pith:2EKKEV4N submitted 2020-05-11 hep-th

No-scale and scale-separated flux vacua from IIA on G2 orientifolds

classification hep-th
keywords vacuadescriptionfluxesmodulifindfluxformno-scale
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We discuss flux compactifications of IIA string theory on G2 holonomy spaces with O2/O6-planes to three dimensions and find two classes of solutions: 1) No-scale Minkowski vacua from NSNS 3-form fluxes and RR 4-form fluxes. 2) By adding Romans mass we find AdS$_3$ vacua for which the AdS scale can be decoupled completely from the KK scale while the solution is at tunable weak coupling and large volume. For the AdS$_3$ vacuum we only have a proper 3D description (i.e. smeared orientifold description) of the solution like the 4D analogue of IIA moduli stabilization from fluxes and O6-planes. This 3D description reveals that moduli with non-compact moduli spaces can be stabilized at the classical level. For both types of vacua we can have supersymmetry or not.

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Cited by 7 Pith papers

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

  1. Scale-separated vacua with extended supersymmetry

    hep-th 2026-04 unverdicted novelty 8.0

    First examples of scale-separated vacua with extended supersymmetry are constructed as circle compactifications of 4D massive IIA solutions with additional fluxes and sources.

  2. $\mathcal{N}=1$ spectra, cubic couplings and the rigid fate of DGKT

    hep-th 2026-07 unverdicted novelty 7.0

    DGKT vacua satisfy the holographic cubic coupling constraint if and only if the Calabi-Yau threefold is rigid (h^{2,1}=0).

  3. On the branes behind scale-separated AdS$_{3}$ flux vacua

    hep-th 2026-06 conditional novelty 6.5

    Scale-separated supersymmetric AdS3 flux vacua of type IIB G2-orientifolds arise as the near-horizon region of codimension-one smeared D1-D5-KK5 intersections.

  4. $G_2$ flux compactifications

    hep-th 2026-05 unverdicted novelty 6.0

    Compactifications of the five 10D string theories on generic G2-structure 7-manifolds produce unified 3D N=1 effective theories with full scalar potentials, kinetic terms, and flux data organized via real superpotentials.

  5. Broken and restored: a holographic constraint for AdS vacua with orbifolds

    hep-th 2026-05 unverdicted novelty 5.0

    Holographic constraint on AdS vacua is violated for Z2 orbifolds but restored by non-abelian extensions, implying O-planes cannot wrap cycles in distinct homology classes.

  6. Instabilities in scale-separated Casimir vacua

    hep-th 2025-07 unverdicted novelty 5.0

    Casimir-stabilized AdS vacua with parametric scale separation in supergravity exhibit perturbative and non-perturbative instabilities under deformations.

  7. A note on the holographic consistency of DGKT-type vacua with $h^{2,1}=0$

    hep-th 2026-06 unverdicted novelty 4.0

    Cancellations that satisfy a holographic three-point function constraint in DGKT vacua persist across examples with h^{2,1}=0 and more complicated triple-intersection numbers.