A new maximally supersymmetric background of IIB superstring theory

TL;DR

This paper introduces a new maximally supersymmetric background in IIB superstring theory, detailing its geometry, flux, symmetries, and relations to T-duality and M-theory, expanding the landscape of known solutions.

Contribution

It provides the explicit supergravity solution, computes the isometries, Killing spinors, and symmetry superalgebra for this novel background.

Findings

Explicit supergravity solution of the background

Determination of isometries and Killing spinors

Analysis of T-duality and M-theory relations

Abstract

We present a maximally supersymmetric IIB string background. The geometry is that of a conformally flat lorentzian symmetric space G/K with solvable G, with a homogeneous five-form flux. We give the explicit supergravity solution, compute the isometries, the 32 Killing spinors, and the symmetry superalgebra, and then discuss T-duality and the relation to M-theory.