De Broglie-Proca and Bopp-Podolsky massive photon gases in cosmology
| dc.contributor.author | Medeiros, Léo Gouvêa | |
| dc.contributor.author | Cuzinatto, R.R. | |
| dc.contributor.author | Morais, Eduardo M. de | |
| dc.contributor.author | Souza, Clicia Naldoni de | |
| dc.contributor.author | Pimentel, B. M. | |
| dc.date.accessioned | 2020-08-28T21:03:49Z | |
| dc.date.available | 2020-08-28T21:03:49Z | |
| dc.date.issued | 2017-04-01 | |
| dc.description.resumo | We investigate the influence of massive photons on the evolution of the expanding universe. Two particular models for generalized electrodynamics are considered, namely de Broglie-Proca and Bopp-Podolsky electrodynamics. We obtain the equation of state (EOS) $P=P(\varepsilon)$ for each case using dispersion relations derived from both theories. The EOS are inputted into the Friedmann equations of a homogeneous and isotropic space-time to determine the cosmic scale factor a(t). It is shown that the photon non-null mass does not significantly alter the result $a\propto t^{1/2}$ valid for a massless photon gas; this is true either in de Broglie-Proca's case (where the photon mass m is extremely small) or in Bopp-Podolsky theory (for which m is extremely large) | pt_BR |
| dc.identifier.citation | CUZINATTO, R. R.; MORAIS, E. M. de; MEDEIROS, L. G.; SOUZA, C. Naldoni de; PIMENTEL, B. M.. De Broglie-Proca and Bopp-Podolsky massive photon gases in cosmology. Epl (Europhysics Letters), [s.l.], v. 118, n. 1, p. 19001, 1 abr. 2017. Disponível em: https://iopscience.iop.org/article/10.1209/0295-5075/118/19001. Acesso em: 12 ago. 2020. http://dx.doi.org/10.1209/0295-5075/118/19001. | pt_BR |
| dc.identifier.doi | 10.1209/0295-5075/118/19001 | |
| dc.identifier.issn | 0295-5075 | |
| dc.identifier.issn | 1286-4854 | |
| dc.identifier.uri | https://repositorio.ufrn.br/jspui/handle/123456789/29907 | |
| dc.language | en | pt_BR |
| dc.publisher | IOP Publishing | pt_BR |
| dc.subject | Broglie-Proca | pt_BR |
| dc.subject | Bopp-Podolsky | pt_BR |
| dc.subject | Photon gases | pt_BR |
| dc.subject | Cosmology | pt_BR |
| dc.title | De Broglie-Proca and Bopp-Podolsky massive photon gases in cosmology | pt_BR |
| dc.type | article | pt_BR |
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