Non-perturbative methods for false vacuum decay
High Energy Physics - Theory
2023-07-11 v2 High Energy Physics - Phenomenology
Abstract
We propose a simple non-perturbative formalism for false vacuum decay using functional methods. We introduce the quasi-stationary effective action, a bounce action that non-perturbatively incorporates radiative corrections and is robust to strong couplings. The quasi-stationary effective action obeys an exact flow equation in a modified functional renormalization group with a motivated regulator functional. We demonstrate the use of this formalism in a simple toy model and compare our result with that obtained in perturbation theory.
Cite
@article{arxiv.2104.10687,
title = {Non-perturbative methods for false vacuum decay},
author = {Djuna Croon and Eleanor Hall and Hitoshi Murayama},
journal= {arXiv preprint arXiv:2104.10687},
year = {2023}
}
Comments
26 pages, 2 figures; v2: added discussion, appendices, and references, corrected typos, switched to JHEP format