Autor(es)

Borges, L. H. C. ^[1] ; Barone, F. A. ^[2]

Afiliação do(s) autor(es)

^[1] UNESP, DFQ, Campus Guaratingueta, Avenida Dr Ariberto Pereira, BR-12516410 Guaratingueta, SP - Brazil

^[2] Univ Fed Itajuba, IFQ, Ave BPS 1303, Caixa Postal 50, BR-37500903 Itajuba, MG - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Physics; v. 49, n. 4, p. 571-582, AUG 2019.
• Citações Web of Science: 0

Resumo

This paper is dedicated to the study of interactions between external sources for the electromagnetic field in a model which exhibits Lorentz-symmetry breaking. We investigate such interactions in the CPT-even photon sector of the Standard Model Extension (SME), where the Lorentz-symmetry breaking is caused by a background tensor K-(F)sigma. Since the background tensor is very tiny, we treat it perturbatively up to first order and we focus on physical phenomena which have no counterpart in Maxwell electrodynamics. We consider effects related to field sources describing point-like charges, straight line currents, and Dirac strings. We also investigate the so-called Aharonov-Bohm bound states in a Lorentz-symmetry breaking scenario. We use atomic experimental data to verify if we could impose upper bounds to the Lorentz-symmetry breaking parameters involved. We also use some overestimated constrains for the Lorentz-symmetry breaking parameters in order to investigate if the obtained results could be relevant for condensed matter systems. (AU)

• Processo FAPESP: 16/11137-5 - Gravitação renormalizável e quebra de Lorentz com campos de spin-2
• Beneficiário: Luiz Henrique de Campos Borges
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado