Creation of cosmological magnetic fields in a bouncing cosmology
arXiv:astro-ph/0612281 · doi:10.1088/1475-7516/2007/04/011
Abstract
We show (in a completely analytical and exact manner) that an efficient magnetic field amplification method is operative during the bounce in a time-dependent gauge coupling model. The cosmological magnetic fields so generated have particular spectral features, and may be observed by future CMB measurements and by direct cluster measurements.
12 pages, 2 figures