Vacuum decay and Euclidean lattice Monte Carlo

Research output: Contribution to journalArticlepeer-review

Abstract

The decay rate of a metastable vacuum is usually calculated using a semiclassical approximation to the Euclidean path integral. The extension to a complete Euclidean lattice Monte Carlo computation, however, is hampered by analytic continuations that are ill-suited to numerical treatment, and the nonequilibrium nature of a metastable state. In this paper we develop a new methodology to compute vacuum decay rates from Monte Carlo simulations of Euclidean lattice theories. To test the new method, we consider simple quantum mechanical systems systems with metastable vacua. This work can be extended to Euclidean field theories, which we discuss in the Conclusions.

Original languageEnglish (US)
Article number094506
JournalPhysical Review D
Volume107
Issue number9
DOIs
StatePublished - May 1 2023

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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