Decay of Vacuum Energy

TL;DR

This paper explores how interacting massive particles in de Sitter space can create a stimulated radiation effect, potentially depleting curvature and offering a novel approach to the cosmological constant problem.

Contribution

It introduces the concept of a 'cosmic laser' mechanism where vacuum acts as an inversely populated medium, a new perspective on vacuum energy decay.

Findings

Vacuum acts as an inversely populated medium

Stimulated radiation can lead to vacuum energy depletion

Potential implications for solving the cosmological constant problem

Abstract

This paper studies interacting massive particles on the de Sitter background. It is found that the vacuum acts as an inversely populated medium which is able to generate stimulated radiation. Without back reaction (not considered in this paper) this effect leads to the explosion. It is expected that the proposed "cosmic laser" mechanism depletes the curvature and may help to solve the cosmological constant problem.