Arbitrary Spin Representations in de Sitter from dS/CFT with Applications to dS Supergravity

TL;DR

This paper analyzes arbitrary spin fields in de Sitter space using group representations and explores the potential for constructing consistent de Sitter supergravity within its horizon.

Contribution

It introduces a simple group representation method relating bulk fields to boundary conformal fields and revisits the possibility of de Sitter supergravity construction.

Findings

Relates massive and partially massless fields to boundary conformal fields

Provides insights into de Sitter supergravity construction within the horizon

Offers a unified approach for arbitrary spin representations in de Sitter space

Abstract

We present a simple group representation analysis of massive, and particularly ``partially massless'', fields of arbitrary spin in de Sitter spaces of any dimension. The method uses bulk to boundary propagators to relate these fields to Euclidean conformal ones at one dimension lower. These results are then used to revisit an old question: can a consistent de Sitter supergravity be constructed, at least within its intrinsic horizon?