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arXiv · 2104.10687

Non-perturbative methods for false vacuum decay

Djuna Croon·Eleanor Hall·Hitoshi Murayama
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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.

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Djuna Croon, Eleanor Hall, Hitoshi Murayama. 2021-04-21. Non-perturbative methods for false vacuum decay. https://arxiv.org/abs/2104.10687

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