Cited by 64Particle physics theoretical and experimental studiesBlack Holes and Theoretical PhysicsCosmology and Gravitation Theories

Convexity, gauge-dependence and tunneling rates

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Plascencia, Alexis D., Tamarit, Carlos·2016·Journal of High Energy Physics

Abstract

We clarify issues of convexity, gauge-dependence and radiative corrections in relation to tunneling rates. Despite the gauge dependence of the effective action at zero and finite temperature, it is shown that tunneling and nucleation rates remain independent of the choice of gauge-fixing. Taking as a starting point the functional that defines the transition amplitude from a false vacuum onto itself, it is shown that decay rates are exactly determined by a non-convex, false vacuum effective action evaluated at an extremum. The latter can be viewed as a generalized bounce configuration, and gauge-independence follows from the appropriate Nielsen identities. This holds for any election of gauge-fixing that leads to an invertible Faddeev-Popov matrix.

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Crossref · 10.1007/jhep10(2016)099

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  • Tunnelling between degenerate vacua is at the origin of convexity of the effective potential and restoration of a symmetric true vacuum.

    “while the second is at the origin of convexity of the effective potential [2-11] and therefore restoration of a symmetric true vacuum.”

    From Double-well instantons in finite volume (2024) · cites this paper as [10]

    In the discussion of the true-vacuum effective potential (page not identified in our copy), the paper links its convexity to summing contributions associated with multiple local vacua and includes tunnelling sectors. It says those tunnelling contributions can be nonperturbatively suppressed; it does not say tunnelling is the origin of convexity or that convexity restores a symmetric true vacuum. (LLM, conf=0.85)

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Authors
Plascencia, A. D., & Tamarit, C.
Affiliations
Durham University (GB)
Corresponding author
Tamarit, Carlos
Venue
Journal of High Energy Physics
Published
2016-10
Volume
2016
Issue
10
ISSN
1029-8479 (ISSN-L)
OpenAlex
W2534405390
Cited by
64
References
69
Citations by year
2025: 3 · 2024: 4 · 2023: 8 · 2022: 6 · 2021: 7 · 2020: 2 · 2019: 6 · 2018: 14 · 2017: 10 · 2016: 4
FWCI
5.48
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of High Energy Physics (publishedVersion, cc-by)
  • arXiv (Cornell University) (publishedVersion)
  • Durham Research Online (Durham University) (acceptedVersion, cc-by)
  • arXiv (Cornell University)
Funders
Ministerio de Ciencia e Innovación (FPA2011-24568)
Topics
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Particle physics theoretical and experimental studies
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Black Holes and Theoretical Physics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
Keywords
false vacuum decay, tunneling rate, nucleation rate, gauge dependence, gauge fixing, effective action, convexity, Nielsen identities, radiative corrections, finite temperature, quantum tunneling

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