https://doi.org/10.1140/epjp/s13360-025-06351-8
Regular Article
Considerations on electromagnetic radiation in Podolsky electrodynamics within a Lorentz-symmetry violating framework
1
Instituto de Física e Química, Universidade Federal de Itajubá, Itajubá, Brasil
2
Departamento de Física and Centro Científico-Tecnológico de Valparaíso-CCTVal, Universidad Técnica Federico Santa María, Valparaíso, Chile
3
Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, RJ, Brasil
Received:
30
December
2024
Accepted:
21
April
2025
Published online:
21
May
2025
We explore how higher-order derivative terms impact a physical observable within a Lorentz-symmetry violating (LSV) framework. We specifically examine Podolsky electrodynamics coupled with the Carroll-Field-Jackiw model (CFJ). Our analysis shows how vacuum and wave propagation are affected by the interaction of LSV parameters with properties of Podolsky electrodynamics. In this scenario, our results indicate that the new electromagnetic vacuum is birefringent, dichroic, and dispersive. We also point out that the higher-derivative term in the presence of the CFJ space-time anisotropy induces an oscillation mechanism between the photon, which acquires a non-vanishing mass, and the massive vector mode carried by the higher derivative. We then investigate the electromagnetic radiation emitted by a moving charged particle interacting with this new medium. Our analysis reveals that the refractive vacuum through which the charged particle travels influences the electromagnetic radiation, leading to a profile similar to the Cherenkov effect.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
