Can we implement the holographic principle in asymptotically flat spacetimes?

TL;DR

This paper explores the possibility of applying the holographic principle to asymptotically flat spacetimes, focusing on the candidate dual theory at null infinity and its symmetry properties.

Contribution

It introduces the key components of a potential dual theory at null infinity that respects the asymptotic symmetries of flat spacetimes.

Findings

Identification of the candidate dual theory at null infinity

Analysis of invariance under asymptotic symmetry group

Discussion of recent progress in holography for flat spacetimes

Abstract

We discuss some recent results in the quest to implement the holographic principle in asymptotically flat spacetimes. In particular we introduce the key ingredients of the candidate dual theory which lives at null infinity and it is invariant under the asymptotic symmetry group of this class of spacetimes.