All gaugings and stable de Sitter in D = 7 half-maximal supergravity

Dibitetto, Giuseppe; Fernandez-Melgarejo, Jose J.; Marqués, Diego

doi:10.1007/jhep11(2015)037

Cited by 32 publications

(59 citation statements)

References 35 publications

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“…This gives the correct scalar potential of half-maximal gauged SUGRA [54][55][56][96][97][98][99][100][101], up to the correct choice of the coefficients λ and γ when D = 6. Again, we see that our Ansatz ensures that the only dependence on Y appears through the conformal factor ρ and thus we have a consistent truncation.…”

Section: Reduction Of Scalar Potentialmentioning

confidence: 94%

Half‐Maximal Supersymmetry from Exceptional Field Theory

Malek

2017

Fortschritte der Physik

168

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We study D ≥ 4-dimensional half-maximal flux backgrounds using exceptional field theory. We define the relevant generalised structures and also find the integrability conditions which give warped half-maximal Minkowski D and AdS D vacua. We then show how to obtain consistent truncations of type II / 11-dimensional SUGRA which break half the supersymmetry. Such truncations can be defined on backgrounds admitting exceptional generalised SO(d−1−N ) structures, where d = 11−D, and N is the number of vector multiplets obtained in the lower-dimensional theory. Our procedure yields the most general embedding tensors satisfying the linear constraint of half-maximal gauged SUGRA. We use this to prove that all D ≥ 4 half-maximal warped AdS D and Minkowski D vacua of type II / 11-dimensional SUGRA admit a consistent truncation keeping only the gravitational supermultiplet. We also show to obtain heterotic double field theory from exceptional field theory and comment on the M-theory / heterotic duality. In five dimensions, we find a new SO(5, N ) double field theory with a (6 + N )-dimensional extended space. Its section condition has one solution corresponding to 10-dimensional N = 1 supergravity and another yielding six-dimensional N = (2, 0) SUGRA.

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Section: Reduction Of Scalar Potentialmentioning

confidence: 94%

Half‐Maximal Supersymmetry from Exceptional Field Theory

Malek

2017

Fortschritte der Physik

168

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“…This will immediately allow us to identify those with the critical points of the ISO(3)-gauged theory found in [18].…”

Section: Jhep11(2017)152mentioning

confidence: 96%

“…The embedding tensor/fluxes dictionary for the case of massive type IIA reductions on S 3 . The underlying 7D gauging is generically ISO(3), except when q =q = λ, where it degenerates to SO(3) [18]. Table 3.…”

Section: Jhep11(2017)152mentioning

confidence: 99%

A swamp of non-SUSY vacua

Danielsson

Dibitetto

Vargas

2017

J. High Energ. Phys.

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Abstract:We consider known examples of non-supersymmetric AdS 7 and AdS 4 solutions arising from compactifications of massive type IIA supergravity and study their stability, taking into account the coupling between closed-and open-string sector excitations. Generically, open strings are found to develop modes with masses below the Breitenlohner-Freedman (BF) bound. We comment on the relation with the Weak Gravity Conjecture, and how this analysis may play an important role in examining the validity of non-supersymmetric constructions in string theory.

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“…The localized solution was first constructed numerically in [46], and the analytic solution was discovered in [52]. A remarkable fact is that the smeared solution is non-supersymmetric [50,53], while there are both supersymmetric [46] and non-supersymmetric [54][55][56] localized solutions. This already indicates that the smeared solution is not a good approximation to the localized ones.…”

Section: A2 Ads 7 Flux Vacua With D6-branesmentioning

confidence: 99%

O‐Plane Backreaction and Scale Separation in Type IIA Flux Vacua

Junghans

2020

Fortschritte der Physik

143

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We construct AdS 4 flux vacua of type IIA string theory in the supergravity (large volume, small g s ) regime, including the backreaction of O6-planes. Our solutions are the localized versions of the smeared solutions on Calabi-Yau orientifolds studied by DeWolfe, Giryavets, Kachru and Taylor and in other works. We find that the O-plane backreaction in these solutions generates warping, a varying dilaton, non-closed RR field strengths and internal curvature. Just like their smeared counterparts, the localized solutions admit stabilized moduli, a parametric control over string corrections and a parametric separation between the AdS and KK scales. Our explicit expressions furthermore make precise the common lore that smeared solutions should approximate the exact ones in the large-volume, small-g s limit. Finally, our solutions appear to violate a recent swampland conjecture about an absence of scale separation in supersymmetric AdS vacua. We make a simple observation explaining why this happens in these solutions in contrast to most other AdS solutions in string theory.

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All gaugings and stable de Sitter in D = 7 half-maximal supergravity

Cited by 32 publications

References 35 publications

Half‐Maximal Supersymmetry from Exceptional Field Theory

Half‐Maximal Supersymmetry from Exceptional Field Theory

A swamp of non-SUSY vacua

O‐Plane Backreaction and Scale Separation in Type IIA Flux Vacua

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