Populating the Whole Landscape

TL;DR

This paper demonstrates that in the context of the landscape of vacua, all de Sitter vacua can transition to each other, leading to a universe where eternal inflation populates the entire landscape regardless of obstacles.

Contribution

It shows that transitions between all de Sitter vacua are possible, even without instantons, implying eternal inflation populates the entire landscape.

Findings

All de Sitter vacua can transition to each other.

Eternal inflation populates the whole landscape.

Transitions occur despite obstacles and anti-de Sitter sinks.

Abstract

Every de Sitter vacuum can transition to every other de Sitter vacuum despite any obstacle, despite intervening anti-de Sitter sinks, despite not being connected by an instanton. Eternal inflation populates the whole landscape.