Symmetric backgrounds of type IIB supergravity

TL;DR

This paper classifies symmetric space backgrounds in type IIB supergravity, identifying which ten-dimensional Lorentzian symmetric spaces support such backgrounds and fully describing their moduli spaces in many cases.

Contribution

It provides a comprehensive classification of symmetric space backgrounds in type IIB supergravity and determines their moduli spaces in numerous instances.

Findings

Identified which ten-dimensional Lorentzian symmetric spaces admit type IIB supergravity backgrounds.

Fully characterized the moduli spaces for about two thirds of these backgrounds.

Enhanced understanding of the geometric structures compatible with type IIB supergravity.

Abstract

In this paper we study homogeneous backgrounds of type IIB supergravity where the underlying geometry is that of a symmetric space. We determine which ten-dimensional lorentzian symmetric spaces (up to local isometry) admit such backgrounds and in about two thirds of the cases we determine fully their moduli space.