Phase transitions in de sitter spacetimes: quantum corrections
File(s)
Preprint
OA Location
Author(s)
Camargo-Molina, Jose Eliel
Gonzalez, Mariana Carrillo
Rajantie, Arttu
Type
preprint
Abstract
We investigate the decay rate of a false vacuum state in de Sitter space at high Hubble rates, using two methods: the Hawking-Moss instanton method which is fully quantum mechanical but relies on the saddle-point approximation, and the Starobinsky-Yokoyama stochastic approach which is nonperturbative but does not include quantum effects. We use the flux over population method to compute the Hawking-Moss decay rate at one-loop order, and demonstrate that in its domain of validity, it is reproduced by the stochastic calculation using the one-loop constraint effective potential. This suggests that the stochastic approach together with the constraint effective potential can be used to accurately describe vacuum decay beyond the saddle-point approximation.
Date Issued
2022-04-06
Citation
arXiv, 2022
ISSN
2470-0010
Journal / Book Title
arXiv
Issue
6
Copyright Statement
Copyright © 2022 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/).
License URL
Identifier
https://arxiv.org/search/gr-qc?searchtype=author&query=Rajantie,+A
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Particles & Fields
Physics
FALSE VACUUM
SCALAR FIELD
DECAY
TIME
FATE
EQUIVALENCE