Texto completo | |
Autor(es): |
Shabad, A. E.
Número total de Autores: 1
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Tipo de documento: | Artigo Científico |
Fonte: | THEORETICAL AND MATHEMATICAL PHYSICS; v. 187, n. 3, p. 813-822, JUN 2016. |
Citações Web of Science: | 1 |
Resumo | |
In theories whose Lorentz invariance is violated by the presence of an external tensor of any rank, we show that a signal velocity, understood as the group velocity of a wave, is added to the velocity of the reference frame according to the standard relativistic rule for adding velocities. In the case where we have a superluminal signal, this observation allows creating a closed time cycle and thus coming to a conclusion about a causality violation even in the absence of relativistic invariance. We also reveal an optical anisotropy of a moving medium that is isotropic at rest. (AU) | |
Processo FAPESP: | 14/08970-1 - Efeitos não lineares em problemas básicos da eletrodinâmica quântica |
Beneficiário: | Dmitri Maximovitch Guitman |
Modalidade de apoio: | Auxílio à Pesquisa - Pesquisador Visitante - Internacional |