https://doi.org/10.1140/epjc/s10052-013-2526-3
Regular Article - Theoretical Physics
Four-dimensional aether-like Lorentz-breaking QED revisited and problem of ambiguities
1
Departamento de Polícia Federal, Setor Técnico-Científico, Rua Hugo D’Antola, 95, Lapa, São Paulo, Brazil
2
Instituto de Física, Universidade Federal de Alagoas, 57072-270, Maceió, Alagoas, Brazil
3
Departamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970, João Pessoa, Paraíba, Brazil
* e-mail: petrov@fisica.ufpb.br
Received:
8
May
2013
Revised:
24
July
2013
Published online:
21
August
2013
In this paper, we consider the perturbative generation of the CPT-even aether-like Lorentz-breaking term in the extended Lorentz-breaking QED within different approaches and discuss its ambiguities.
Key words: Lorentz and Poincaré invariance / Gauge field theories
© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica, 2013
