Abstract The Laser Interferometer Space Antenna (LISA) has two scientific objectives of
cosmological focus: to probe the expansion rate of the universe, and to understand …

The universe is magnetized on all scales probed so far. On the largest scales, galaxies and
galaxy clusters host magnetic fields at the micro Gauss level coherent on scales up to ten …

We review the possible mechanisms for the generation of cosmological magnetic fields,
discuss their evolution in an expanding Universe filled with the cosmic plasma and provide a …

One of the most promising ways to probe intergalactic magnetic fields (IGMFs) is through
gamma rays produced in electromagnetic cascades initiated by high-energy gamma rays or …

We compute the Bayesian evidence and complexity of 193 slow-roll single-field models of
inflation using the Planck 2013 Cosmic Microwave Background data, with the aim of …

The isotropy and homogeneity of the cosmic microwave background (CMB) favors “scalar
driven” early Universe inflationary models. However, gauge fields and other non-scalar …

Magnetic fields appear everywhere in the universe. From stars and galaxies, all the way to
galaxy clusters and remote protogalactic clouds, magnetic fields of considerable strength …

We study an inflationary scenario with a vector field coupled with an inflaton field and show
that the inflationary Universe is endowed with anisotropy for a wide range of coupling …

We review current ideas on the origin of galactic and extragalactic magnetic fields. We begin
by summarizing observations of magnetic fields at cosmological redshifts and on …

We review an inflationary scenario with the anisotropic expansion rate. An anisotropic
inflationary universe can be realized by a vector field coupled with an inflaton, which can be …