AdS vacua with scale separation from IIB supergravity

TL;DR

This paper derives a general ten-dimensional expression for IIB supergravity compactifications with smeared O5/O7 planes, expanding the understanding of scale-separated AdS vacua beyond the well-studied IIA cases.

Contribution

It provides the first general ten-dimensional formulation for IIB compactifications with SU(2) structures and smeared O5/O7 planes, including new explicit solutions.

Findings

Derived a general expression for IIB O5/O7 solutions in terms of SU(2) structures.

Recovered known solutions with specific orientifold projections.

Presented new explicit solutions expanding the landscape of AdS vacua.

Abstract

Only two kinds of compactification are known that lead to four-dimensional supersymmetric AdS vacua with moduli stabilisation and separation of scales at tree-level. The most studied ones are compactifications of massive IIA supergravity on SU(3) structures with smeared O6 planes, for which a general ten-dimensional expression for the solution in terms of the SU(3) structure was found. Less studied are compactifications of IIB supergravity with smeared O5/O7 planes. In this paper we derive a general ten-dimensional expression for the smeared O5/O7 solutions in terms of SU(2) structures. For a specific choice of orientifold projections, we recover the known examples and we also provide new explicit solutions.