Holographic multiverse and conformal invariance

TL;DR

This paper explores a holographic model of the inflationary multiverse, proposing that its wave function corresponds to a lower-dimensional Euclidean theory with potential conformal invariance in the UV regime.

Contribution

It introduces a simple holographic model of the multiverse with bubble nucleation and provides evidence for conformal invariance in the dual Euclidean theory.

Findings

Dual theory likely exhibits conformal invariance in the UV

Model captures bubble nucleation between inflationary vacua

Supports holographic interpretation of the multiverse

Abstract

We consider a holographic description of the inflationary multiverse, according to which the wave function of the universe is interpreted as the generating functional for a lower dimensional Euclidean theory. We analyze a simple model where transitions between inflationary vacua occur through bubble nucleation, and the inflating part of spacetime consists of de Sitter regions separated by thin bubble walls. In this model, we present some evidence that the dual theory is conformally invariant in the UV.