Expansion of True Vacuum Bubbles at the End of Inflation

TL;DR

This paper investigates the decay of false vacuum during the end of inflation, highlighting the role of temperature fluctuations and bubble wall interactions in the phase transition process.

Contribution

It provides new insights into the dynamics of vacuum decay, emphasizing the influence of temperature fluctuations and bubble wall collisions during inflation.

Findings

False vacuum decay is primarily driven by temperature fluctuations.

Bubble walls interact weakly with surroundings during inflation.

Wall collisions can generate large field fluctuations.

Abstract

The dynamics of false vacuum decay at the end of inflation is studied. It is shown that the creation of a new phase is mainly stimulated by temperature fluctuations. Moving walls of O(3)-symmetric bubbles weakly interact with their surroundings at the inflation stage. Large field fluctuations might arise as a result of wall collisions.