Cosmic magnetic fields and dark energy in extended electromagnetism
We discuss an extended version of electromagnetism in which the usual gauge fixing term is promoted into a physical contribution that introduces a new scalar state in the theory. This new state can be generated from vacuum quantum fluctuations during an inflationary era and, on super-Hubble scales,...
| Autores: | ; |
|---|---|
| Tipo de documento: | Artículo |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/44339 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/44339 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | 53 Astronomy & Astrophysics Physics Multidisciplinary Particles & Fields Física (Física) 22 Física |
| _version_ | 1878737959745748992 |
|---|---|
| author | López Maroto, Antonio |
| author2 | Beltrán Jiménez, José |
| author2_role | author |
| author_browse | Beltrán Jiménez, José López Maroto, Antonio |
| author_facet | López Maroto, Antonio Beltrán Jiménez, José |
| author_role | author |
| collection | Docta Complutense |
| description | We discuss an extended version of electromagnetism in which the usual gauge fixing term is promoted into a physical contribution that introduces a new scalar state in the theory. This new state can be generated from vacuum quantum fluctuations during an inflationary era and, on super-Hubble scales, gives rise to an effective cosmological constant. The value of such a cosmological constant coincides with the one inferred from observations as long as inflation took place at the electroweak scale. On the other hand, the new state also generates an effective electric charge density on sub-Hubble scales that produces both vorticity and magnetic fields with coherent lengths as large as the present Hubble horizon. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_a788bd0b68cc0e88a1d3c4d6944f11ce |
| institution | Universidad Complutense de Madrid (UCM) |
| instname_str | Universidad Complutense de Madrid (UCM) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:docta.ucm.es:20.500.14352/44339 |
| publishDate | 2011 |
| publishDateSort | 2011 |
| publisher | IOP Publishing Ltd |
| publisherStr | IOP Publishing Ltd |
| reponame_str | Docta Complutense |
| spelling | Cosmic magnetic fields and dark energy in extended electromagnetism López Maroto, Antonio Beltrán Jiménez, José 53 Astronomy & Astrophysics Physics Multidisciplinary Particles & Fields Física (Física) 22 Física We discuss an extended version of electromagnetism in which the usual gauge fixing term is promoted into a physical contribution that introduces a new scalar state in the theory. This new state can be generated from vacuum quantum fluctuations during an inflationary era and, on super-Hubble scales, gives rise to an effective cosmological constant. The value of such a cosmological constant coincides with the one inferred from observations as long as inflation took place at the electroweak scale. On the other hand, the new state also generates an effective electric charge density on sub-Hubble scales that produces both vorticity and magnetic fields with coherent lengths as large as the present Hubble horizon. IOP Publishing Ltd https://hdl.handle.net/20.500.14352/44339 |
| spellingShingle | Cosmic magnetic fields and dark energy in extended electromagnetism López Maroto, Antonio 53 Astronomy & Astrophysics Physics Multidisciplinary Particles & Fields Física (Física) 22 Física |
| title | Cosmic magnetic fields and dark energy in extended electromagnetism |
| title_full | Cosmic magnetic fields and dark energy in extended electromagnetism |
| title_fullStr | Cosmic magnetic fields and dark energy in extended electromagnetism |
| title_full_unstemmed | Cosmic magnetic fields and dark energy in extended electromagnetism |
| title_short | Cosmic magnetic fields and dark energy in extended electromagnetism |
| title_sort | Cosmic magnetic fields and dark energy in extended electromagnetism |
| topic | 53 Astronomy & Astrophysics Physics Multidisciplinary Particles & Fields Física (Física) 22 Física |
| topic_facet | 53 Astronomy & Astrophysics Physics Multidisciplinary Particles & Fields Física (Física) 22 Física |
| url | https://hdl.handle.net/20.500.14352/44339 |