| Revue: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000330178 |
| ISSN: | 0103-9733 |
| Autores: | Fonseca, M.V.S1 Paredes, A.V1 |
| Instituciones: | 1Ministerio da Ciencia e Tecnologia, Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro. Brasil |
| Año: | 2010 |
| Periodo: | Sep |
| Volumen: | 40 |
| Número: | 3 |
| Paginación: | 319-322 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | The construction of an alternative electromagnetic theory that preserves Lorentz and gauge symmetries, is considered. We start off by building up Maxwell electrodynamics in (3+1)D from the assumption that the associated Lagrangian is a gauge-invariant functional that depends on the electron and photon fields and their first derivatives only. In this scenario, as well-known, it is not possible to set up a Lorentz invariant gauge theory containing a massive photon. We show nevertheless that there exist two radically different electrodynamics, namely, the Chern-Simons and the Podolsky formulations, in which this problem can be overcome. The former is only valid in odd space-time dimensions, while the latter requires the presence of higher-order derivatives of the gauge field in the Lagrangian. This theory, usually known as Podolsky electrodynamics, is simultaneously gauge and Lorentz invariant; in addition, it contains a massive photon. Therefore, a massive photon, unlike the popular belief, can be adequately accommodated within the context of a gauge-invariant electrodynamics |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Electromagnetismo, Física, Física atómica y molecular, Electrodinámica de Podolsky, Fotones, Electrodinámica |
| Keyword: | Physics and astronomy, Atomic and molecular physics, Electromagnetism, Physics, Podolsky Electrodynamic, Massive Photons, Electrodynamics |
| Texte intégral: | Texto completo (Ver HTML) |
