Skip to main content
Article thumbnail
Location of Repository

Large scale primordial magnetic fields from inflation and preheating

By Ola Tornkvist, Anne-Christine Davis, Konstantinos Dimopoulos and Tomislav Prokopec

Abstract

We consider models in which the (transverse) photon mass is non-zero during inflation and drops to zero non-adiabatically at the end of inflation. Through this process, vacuum fluctuations of the photon field are converted into physical, long-wavelength modes with high amplitude. The resulting spectrum of the field strength is approximately B_l ~ 1/l, where l is the relevant coherence scale. With a reasonable model of field evolution we obtain, on comoving galactic scales, a magnetic field strong enough to seed a dynamo mechanism and generate the observed galactic magnetic fields

Publisher: American Institute of Physics
Year: 2000
OAI identifier: oai:eprints.lancs.ac.uk:22979
Provided by: Lancaster E-Prints

Suggested articles

Citations

  1. (0009). For a short review, see e.g. O. T¨ ornkvist, astro-ph/0002307. For an extensive review, see
  2. (0009). For a short review, see e.g. O. To¨rnkvist, astro-ph/0002307. For an extensive review, see

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.