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Related papers: Comments on classical AdS flux vacua with scale se…

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It has been argued that orientifold vacua with fluxes in type IIA string theory can achieve moduli stabilisation and arbitrary decoupling between the AdS and KK scales upon sending certain unconstrained RR-flux quanta to infinity. In this…

High Energy Physics - Theory · Physics 2023-05-24 Gary Shiu , Flavio Tonioni , Vincent Van Hemelryck , Thomas Van Riet

We study supersymmetric AdS$_3$ flux vacua of massive type-IIA supergravity on anisotropic G2 orientifolds. Depending on the value of the $F_4$ flux the seven-dimensional compact space can either have six small and one large dimension such…

High Energy Physics - Theory · Physics 2023-11-30 Fotis Farakos , Matteo Morittu

We study the separation of AdS and Kaluza-Klein (KK) scales in type II 4d AdS orientifold vacua. We first address this problem in toroidal/orbifold type IIA vacua with metric fluxes, corresponding to compactifications in twisted tori, both…

High Energy Physics - Theory · Physics 2020-03-18 Anamaría Font , Alvaro Herráez , Luis E. Ibáñez

We present minimally supersymmetric AdS$_4$ flux vacua derived from massive type IIA compactified on $T^6/\mathbb{Z}_3\times \mathbb{Z}_3$ orbifold, characterized by unconstrained fluxes with general scaling. We discover anisotropic scaling…

High Energy Physics - Theory · Physics 2023-09-29 George Tringas

We review recent progress in constructing type IIB AdS$_{3}$ flux vacua that exhibit parametrically-controlled scale separation and come along with integer-valued conformal dimensions for the would-be dual CFT$_{2}$ operators. We comment on…

High Energy Physics - Theory · Physics 2025-09-30 Álvaro Arboleya , Adolfo Guarino , Matteo Morittu

We argue that scale-separated AdS$_2$ vacua with at least two preserved supercharges cannot arise from flux compactifications in a regime of computational control. We deduce this by showing that the AdS$_2$ scale is parametrically of the…

High Energy Physics - Theory · Physics 2025-03-19 N. Cribiori , F. Farakos , N. Liatsos

We discuss minimally supersymmetric AdS$_3$ flux vacua of massive type IIA supergravity on G2-orientifolds. We find that configurations that are scale-separated can be within finite distance from non scale-separated ones, while both remain…

High Energy Physics - Theory · Physics 2023-10-17 Fotis Farakos , Matteo Morittu , George Tringas

We study supersymmetric scale-separated AdS$_3$ flux vacua of massive IIA on G2 orbifolds with smeared orientifold planes. We consider two types of $T^7/Z_2^3$ orbifolds which, with appropriate flux choices, yield integer dual dimensions…

High Energy Physics - Theory · Physics 2025-03-18 Fotis Farakos , George Tringas

We consider two infinite families of Non-Supersymmetric $AdS_4$ vacua, called Type 2) and Type 3) vacua, that arise in massive IIA supergravity with flux. We show that both families are perturbatively stable. We then examine…

High Energy Physics - Theory · Physics 2014-11-20 Prithvi Narayan , Sandip P. Trivedi

We provide the first scale-separated AdS solutions from compactifications of the heterotic string. Our solutions have parametrically weak coupling, large volume, and the internal KK scale is parametrically smaller than the AdS length. These…

High Energy Physics - Theory · Physics 2025-11-12 George Tringas , Timm Wrase

We discuss flux compactifications of IIA string theory on G2 holonomy spaces with O2/O6-planes to three dimensions and find two classes of solutions: 1) No-scale Minkowski vacua from NSNS 3-form fluxes and RR 4-form fluxes. 2) By adding…

High Energy Physics - Theory · Physics 2020-08-26 Fotis Farakos , George Tringas , Thomas Van Riet

We initiate a systematic study of type II orientifold flux vacua in three dimensions including gauge and metric fluxes, O-planes and D-branes. We derive simple flux models (we dub them RSTU-models) that admit a description in terms of…

High Energy Physics - Theory · Physics 2025-09-30 Álvaro Arboleya , Adolfo Guarino , Matteo Morittu

Motivated by the question of whether scale-separated AdS$_3$ flux vacua arising from G$_2$ compactifications admit an uplift to eleven-dimensional supergravity, we construct scale-separated AdS$_3$ flux vacua in massless type IIA with only…

High Energy Physics - Theory · Physics 2026-03-30 George Tringas

Massive type IIA flux compactifications of the form AdS$_4 \times X_6$, where $X_6$ admits a Calabi-Yau metric and O6-planes wrapping three-cycles, display families of vacua with parametric scale separation between the compactification…

High Energy Physics - Theory · Physics 2024-02-02 Rafael Carrasco , Thibaut Coudarchet , Fernando Marchesano , David Prieto

We revisit various aspects of AdS$_4$ flux vacua with scale separation in type II supergravity and M-theory. We show that massless IIA allows both weakly and strongly coupled solutions for which the classical orientifold backreaction can be…

High Energy Physics - Theory · Physics 2021-12-22 Niccolò Cribiori , Daniel Junghans , Vincent Van Hemelryck , Thomas Van Riet , Timm Wrase

We argue that in theories of quantum gravity with discrete gauge symmetries, e.g. $\textbf{Z}_k$, the gauge couplings of U$(1)$ gauge symmetries become weak in the limit of large $k$, as $g\to k^{-\alpha}$ with $\alpha$ a positive order 1…

High Energy Physics - Theory · Physics 2020-07-15 Ginevra Buratti , Jose Calderon , Alessandro Mininno , Angel M. Uranga

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…

High Energy Physics - Theory · Physics 2020-07-15 Daniel Junghans

I construct supersymmetric AdS$_3$ vacua of type IIB string theory that exhibit parametric scale separation in the controlled regime. These solutions arise from compactifications on seven-dimensional manifolds equipped with co-closed…

High Energy Physics - Theory · Physics 2025-10-15 Vincent Van Hemelryck

The DGKT vacua are a class of AdS$_4$ flux vacua showing full moduli stabilization, parametric control, and a parametric separation of scales. The particular masses of the moduli remarkably give rise to integer conformal dimensions in the…

High Energy Physics - Theory · Physics 2023-05-24 Fien Apers

We propose the first examples of scale-separated vacua with extended supersymmetry. They arise as circle compactifications of four-dimensional vacua of massive type IIA supergravity with scale separation, upon introducing additional fluxes…

High Energy Physics - Theory · Physics 2026-04-30 Niccolò Cribiori , Fotis Farakos , Alexandros Zarafonitis
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