Preprint

PUBDB-2023-05069

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png BubbleDet: A Python package to compute functional determinants for bubble nucleation

Ekstedt, A. (Corresponding author)Extern* ; Gould, O. ; Hirvonen, J.

2023

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Please use a persistent id in citations: doi:10.3204/PUBDB-2023-05069

Report No.: DESY-23-119; arXiv:2308.15652

Abstract: We present a Python package, BubbleDet, for computing one-loop functional determinants around spherically symmetric background fields. This gives the next-to-leading order correction to both the vacuum decay rate, at zero temperature, and to the bubble nucleation rate in first-order phase transitions at finite temperature. For predictions of gravitational wave signals from cosmological phase transitions, this is expected to remove one of the leading sources of theoretical uncertainty. BubbleDet is applicable to arbitrary scalar potentials and in any dimension up to seven. It has methods for fluctuations of scalar fields, including Goldstone bosons, and for gauge fields, but is limited to cases where the determinant factorises into a product of separate determinants, one for each field degree of freedom. To our knowledge, BubbleDet is the first package dedicated to calculating functional determinants in spherically symmetric background

Keyword(s): bubble, nucleation ; symmetry, rotation ; potential, scalar ; temperature, 0 ; fluctuation, scalar ; higher-order, 1 ; field theory, scalar ; critical phenomena ; background field ; determinant ; Goldstone particle ; gravitational radiation ; decay rate ; gauge field theory ; finite temperature ; background

Note: 40 pages, 12 figures

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Contributing Institute(s):

1. Uni Hamburg / Theorie (UNI/TH)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2023

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Database coverage:
; ; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Ekstedt, A.Extern*DESY* ; Gould, O. (Corresponding author) ; Hirvonen, J.
BubbleDet: a Python package to compute functional determinants for bubble nucleation
Journal of high energy physics 12(12), 056 (2023) [10.1007/JHEP12(2023)056]2023     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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