Year: 2025
Type: article
Abstract: Flux compactifications of IIA supergravity on orientifolded $$\hbox {G}_2$$ G 2 -manifolds have been argued to allow for classical $$\hbox {Minkowski}_3$$ Minkowski 3 vacua with moduli and scale-separated $$\hbox {AdS}_3$$ AdS 3 vacua with full moduli stabilisation. To further uplift these vacua to meta-stable $$\hbox {dS}_3$$ dS 3 vacua using anti-D2 branes, warped throats are desirable. We study the flux-stabilisation of local “CGLP-type” throats in compact $$\hbox {G}_2$$ G 2 spaces, and discuss consistency constraints on anti-brane uplifting. Despite the classical $$\hbox {AdS}_3$$ AdS 3 vacua being free of tachyons, we find that uplifting from anti-branes down warped throats is forbidden. If instead we rely on hypothetical $$\hbox {AdS}_3$$ AdS 3 vacua that arise from quantum corrections to the classical $$\hbox {Minkowski}_3$$ Minkowski 3 vacua, we find that (similarly to the 4d analogues) consistency constraints point in opposite directions. However, there is potentially an advantage over 4d when it comes to concrete fine-tuning freedom of numbers, such as tadpole constraints.
Source: The European Physical Journal C
Authors: Fotis Farakos, George Tringas, Thomas Van Riet
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4414337245