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@article{Erickson:2020:10.1007/jhep10(2020)157,
author = {Erickson, CW and Harrold, AD and Leung, R and Stelle, KS},
doi = {10.1007/jhep10(2020)157},
journal = {The Journal of High Energy Physics},
pages = {1--26},
title = {Covert symmetry breaking},
url = {http://dx.doi.org/10.1007/jhep10(2020)157},
volume = {2020},
year = {2020}
}

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TY  - JOUR
AB  - 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.
AU  - Erickson,CW
AU  - Harrold,AD
AU  - Leung,R
AU  - Stelle,KS
DO  - 10.1007/jhep10(2020)157
EP  - 26
PY  - 2020///
SN  - 1029-8479
SP  - 1
TI  - Covert symmetry breaking
T2  - The Journal of High Energy Physics
UR  - http://dx.doi.org/10.1007/jhep10(2020)157
UR  - https://link.springer.com/article/10.1007%2FJHEP10%282020%29157
UR  - http://hdl.handle.net/10044/1/84637
VL  - 2020
ER  -

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