RT Journal Article
T1 Cosmic magnetic fields and dark energy in extended electromagnetism
A1 López Maroto, Antonio
A1 Beltrán Jiménez, José
AB 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.
PB IOP Publishing Ltd
SN 1742-6588
SN 1742-6588
YR 2011
FD 2011
LK https://hdl.handle.net/20.500.14352/44339
UL https://hdl.handle.net/20.500.14352/44339
LA eng
NO This work has been supported by MICINN (Spain) project numbers FIS 2008- 01323 and FPA 2008-00592, CAM/UCM 910309, MEC grant BES-2006-12059 and MICINN Consolider-Ingenio MULTIDARK CSD2009-00064. J.B. also wishes to thank support from the Norwegian Council under the YGGDRASIL project no 195761/V11.Spanish Relativity Meeting (ERE 2010) on Gravity as a Crossroad in Physics (2010. Granada,España)
NO MICINN (Spain)
NO CAM/UCM
NO MEC
NO MICINN Consolider-Ingenio MULTIDARK
NO Norwegian Council under the YGGDRASIL project
DS Docta Complutense
RD 9 jun 2025