Micromanaging de Sitter holography

TL;DR

This paper develops a framework for constructing de Sitter vacua with semi-holographic duals, providing a microscopic understanding of de Sitter space and its entropy through brane constructions and compactifications.

Contribution

It introduces a new method to realize de Sitter space as a warped compactification with dual CFT sectors, advancing the microscopic understanding of de Sitter holography.

Findings

Constructed explicit 3D examples of de Sitter holography.

Provided a microscopic interpretation of Gibbons-Hawking entropy.

Outlined ongoing work for 4D de Sitter constructions.

Abstract

We develop tools to engineer de Sitter vacua with semi-holographic duals, using elliptic fibrations and orientifolds to uplift Freund-Rubin compactifications with CFT duals. The dual brane construction is compact and constitutes a microscopic realization of the dS/dS correspondence, realizing d-dimensional de Sitter space as a warped compactification down to (d-1)-dimensional de Sitter gravity coupled to a pair of large-N matter sectors. This provides a parametric microscopic interpretation of the Gibbons-Hawking entropy. We illustrate these ideas with an explicit class of examples in three dimensions, and describe ongoing work on four-dimensional constructions.