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Covert symmetry breaking

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Title: Covert symmetry breaking
Authors: Erickson, CW
Harrold, AD
Leung, R
Stelle, KS
Item Type: Journal Article
Abstract: Reduction from a higher-dimensional to a lower-dimensional field theory can display special features when the zero-level ground state has nontrivial dependence on the reduction coordinates. In particular, a delayed ‘covert’ form of spontaneous symmetry breaking can occur, revealing itself only at fourth order in the lower-dimensional effective field theory action. This phenomenon is explored in a simple model of (d + 1)-dimensional scalar QED with one dimension restricted to an interval with Dirichlet/Robin boundary conditions on opposing ends. This produces an effective d-dimensional theory with Maxwellian dynamics at the free theory level, but with unusual symmetry breaking appearing in the quartic vector-scalar interaction terms. This simple model is chosen to illuminate the mechanism of effects which are also noted in gravitational braneworld scenarios.
Issue Date: Oct-2020
Date of Acceptance: 16-Sep-2020
URI: http://hdl.handle.net/10044/1/84637
DOI: 10.1007/jhep10(2020)157
ISSN: 1029-8479
Publisher: IOP Publishing
Start Page: 1
End Page: 26
Journal / Book Title: The Journal of High Energy Physics
Volume: 2020
Issue: 10
Copyright Statement: © The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Sponsor/Funder: Science and Technology Facilities Council (STFC)
Funder's Grant Number: ST/P000762/1
Keywords: hep-th
hep-th
gr-qc
83E15 (primary), 81T12, 81T13, 70S15 (secondary)
0105 Mathematical Physics
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0206 Quantum Physics
Nuclear & Particles Physics
Publication Status: Published
Article Number: 157
Online Publication Date: 2020-10-26
Appears in Collections:Physics
Theoretical Physics



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