New instabilities for non-supersymmetric AdS${}_4$ orientifold vacua

Abstract

We consider massive type IIA orientifold compactifications of the form AdS${}_4\times X_6$, where $X_6$ admits a Calabi-Yau metric and is threaded by background fluxes. From a 4d viewpoint, fluxes generate a potential whose vacua have been classified, including one $\mathcal{N}=1$ and three perturbatively stable $\mathcal{N}=0$ branches. We reproduce this result from a 10d viewpoint, by solving the type IIA equations at the same level of detail as previously done for the $\mathcal{N}=1$ branch. All solutions exhibit localised sources and parametric scale separation. We then analyse the non-perturbative stability of the $\mathcal{N}=0$ branches. We consider new 4d membranes, obtained from wrapping D8-branes on $X_6$ or D6-branes on its divisors, threaded by non-diluted worldvolume fluxes. Using them we show that all branches are compatible with the Weak Gravity Conjecture for membranes. In fact, most vacua satisfy the sharpened conjecture that predicts superextremal membranes in $\mathcal{N}=0$ settings, except for a subset whose non-perturbative stability remains an open problem.

arXiv commentv2: minor corrections, published version; v1:26 pages + appendices, 2 figures

References in corpus (36)

• Four-dimensional String Compactifications with D-Branes, Orientifolds and Fluxes
• The Swampland: Introduction and Review
• Toward Realistic Intersecting D-Brane Models
• Anti-de Sitter Fragmentation
• New Formulations of D=10 Supersymmetry and D8-O8 Domain Walls
• Nonlinear Instantons from Supersymmetric p-Branes
• AdS and the Swampland
• The effective action of Type IIA Calabi-Yau orientifolds
• Fluxes, moduli fixing and MSSM-like vacua in a simple IIA orientifold
• N=1 effective potential from dual type-IIA D6/O6 orientifolds with general fluxes
• Progress in D-brane model building
• F-term Axion Monodromy Inflation
• Supersymmetric D-branes and calibrations on general N=1 backgrounds
• Swampland Conjectures for Strings and Membranes
• Minkowski 3-forms, Flux String Vacua, Axion Stability and Naturalness
• O-plane Backreaction and Scale Separation in Type IIA Flux Vacua
• Open string multi-branched and Kahler potentials
• Branes at angles, torons, stability and supersymmetry
• The effective action of D6-branes in N=1 type IIA orientifolds
• Localized O6-plane solutions with Romans mass
• Three-forms in Supergravity and Flux Compactifications
• The Type IIA Flux Potential, 4-forms and Freed-Witten anomalies
• The N=1 effective actions of D-branes in Type IIA and IIB orientifolds
• Zp charged branes in flux compactifications
• D-branes on AdS flux compactifications
• Discrete Symmetries, Weak Coupling Conjecture and Scale Separation in AdS Vacua
• Coisotropic D8-branes and Model-building
• Exploring The Holographic Swampland
• Three-forms, dualities and membranes in four-dimensional supergravity
• On the Conformal Field Theory Duals of type IIA AdS_4 Flux Compactifications
• On The Stability Of Non-Supersymmetric AdS Vacua
• How many fluxes fit in an EFT?
• Systematics of Type IIA moduli stabilisation
• Non-integer conformal dimensions for type IIA flux vacua
• Type IIA Flux Vacua with Mobile D6-branes
• BIonic membranes and AdS instabilities

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• Pure Supersymmetric AdS and the Swampland
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• A domain wall bound on anti-de Sitter vacua