Power spectrum of large-scale magnetic fields from Gravitoelectromagnetic inflation with a decaying cosmological parameter
| dc.creator | Membiela, Federico Agustin | |
| dc.creator | Bellini, Mauricio | |
| dc.date | 2007-12-18 | |
| dc.date.accessioned | 2026-07-07T08:50:07Z | |
| dc.date.available | 2026-07-07T08:50:07Z | |
| dc.description | Introducing a variable cosmological parameter $Λ(t)$ in a geometrical manner from a 5D Riemann-flat metric, we investigate the origin and evolution of primordial magnetic fields in the early universe, when the expansion is governed by a cosmological parameter $Λ(t)$ that decreases with time. Using the gravitoelectromagnetic inflationary formalism, but without the Feynman gauge, we obtain the power of spectrums for large-scale magnetic fields and the inflaton field fluctuations during inflation. A very important fact is that our formalism is {\em naturally non-conformally invariant}. | |
| dc.description | 7 pages, no figures | |
| dc.identifier | https://arxiv.org/abs/0712.3032 | |
| dc.identifier | http://arxiv.org/abs/0712.3032 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/144505 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Power spectrum of large-scale magnetic fields from Gravitoelectromagnetic inflation with a decaying cosmological parameter | |
| dc.type | text |