Effective potential in Lorentz-breaking field theory models

被引：0
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作者：
A. P. Baeta Scarpelli
L. C. T. Brito
J. C. C. Felipe
J. R. Nascimento
A. Yu. Petrov
机构：
[1] Centro Federal de Educação Tecnológica - MG,Departamento de Polícia Federal
[2] Setor Técnico-Científico,Departamento de Física
[3] Universidade Federal de Lavras,Instituto de Engenharia, Ciência e Tecnologia
[4] Universidade Federal dos Vales do Jequitinhonha e Mucuri,Departamento de Física
[5] Universidade Federal da Paraíba,undefined
来源：
The European Physical Journal C | 2017年 / 77卷
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摘要：
We calculate explicitly the one-loop effective potential in different Lorentz-breaking field theory models. First, we consider a Yukawa-like theory and some examples of Lorentz-violating extensions of scalar QED. We observe, for the extended QED models, that the resulting effective potential converges to the known result in the limit in which Lorentz symmetry is restored. Besides, the one-loop corrections to the effective potential in all the cases we study depend on the background tensors responsible for the Lorentz-symmetry violation. This has consequences for physical quantities like, for example, in the induced mass due to the Coleman–Weinberg mechanism.
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