A bilinear flux-axion polynomial technique yields new branches of type IIA Calabi-Yau flux vacua, including a tachyon-free non-supersymmetric AdS branch.
Supersymmetric AdS(4) compactifications of IIA supergravity
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abstract
We derive necessary and sufficient conditions for N=1 compactifications of (massive) IIA supergravity to AdS(4) in the language of SU(3) structures. We find new solutions characterized by constant dilaton and nonzero fluxes for all form fields. All fluxes are given in terms of the geometrical data of the internal compact space. The latter is constrained to belong to a special class of half-flat manifolds.
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A Landscape of AdS Flux Vacua
A bilinear flux-axion polynomial technique yields new branches of type IIA Calabi-Yau flux vacua, including a tachyon-free non-supersymmetric AdS branch.