Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 3, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP03(2016)061
Keywords
Flux compactifications; D-branes
Categories
Funding
- National Science Foundation of Belgium (FWO) [G.0.E52.14N]
- European Union [656491]
- European Science Foundation HoloGrav Network
- Belgian Federal Science Policy Office through the Inter-University Attraction Pole [P7/37]
- COST Action [MP1210]
- Marie Curie Actions (MSCA) [656491] Funding Source: Marie Curie Actions (MSCA)
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We argue that the Maldacena-Nunez no-go theorem excluding Minkowski and de Sitter vacua in flux compactifications can be extended to anti-de Sitter (AdS) vacua for which the Kaluza-Klein scale is parametrically smaller than the AdS length scale. In the absence of negative tension sources, scale-separated AdS vacua are ruled out in 11-dimensional supergravity; in 10-dimensional supergravity, we show that such vacua can only arise in conjunction with large dilaton gradients. As a practical application of this observation we demonstrate that the mechanism to resolve O6 singularities in massive type IIA at the classical level is likely not to occur in AdS compactifications with scale separation. We furthermore remark that a compactification to four observable dimensions implies a large cosmological hierarchy.
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