De Sitter in Extended Supergravity

TL;DR

This paper explores the relationships between various de Sitter solutions in extended supergravity theories, revealing how higher supersymmetry models reduce to lower ones and identifying new stable and unstable vacua.

Contribution

It demonstrates the interconnectedness of de Sitter solutions across different supergravity models and uncovers new stable and unstable vacua.

Findings

All N=8 models reduce to N=4 models.

A subset of N=4 models can be truncated to N=2 stable vacua.

New stable and unstable de Sitter models are identified.

Abstract

We show that known de Sitter solutions in extended gauged supergravity theories are interrelated via a web of supersymmetry-breaking truncations. In particular, all N=8 models reduce to a subset of the N=4 possibilities. Furthermore, a different subset of the N=4 models can be truncated to stable de Sitter vacua in N=2 theories. In addition to relations between the known cases, we also find new (un)stable models.