Francisco D. Mazzitelli

Scalar electrodynamics and primordial magnetic fields

A primordial magnetic field may be generated during an inflationary period if conformal invariance is broken. We reexamine and generalize previous results about the magnetic field produced by couplings of the form

Primordial magnetic fields induced by cosmological particle creation

{\mathit{R}}^{\mathit{n}}

Resonant photon creation in a three-dimensional oscillating cavity

{\mathit{F}}_{\mathrm{\ensuremath{\mu}}\ensuremath{\nu}}

The proximity force approximation for the Casimir energy as a derivative expansion

{\mathit{F}}^{\mathrm{\ensuremath{\mu}}\ensuremath{\nu}}

Exact Casimir interaction between eccentric cylinders

. We show that the amplitude of the magnitude field depends strongly on n. For adequate values of n the field produced can serve as a seed for galactic magnetic fields. We also compute the effective interaction between the electromagnetic field and the geometry in the context of scalar QED (with and without classical conformal invariance). In both cases, the ampliutde of the magnetic field is too small to be of astrophysical interest. \textcopyright{} 1995 The American Physical Society.

Coarse-grained effective action and renormalization group theory in semiclassical gravity and cosmology

We study the primordial magnetic field generated by stochastic currents produced by scalar charged particles created at the beginning of the radiation dominated epoch. We find that, for the mass range

Fluctuations, Dissipation and the Dynamical Casimir Effect

{10}^{\ensuremath{-}6} \mathrm{GeV}\ensuremath{\lesssim}m\ensuremath{\lesssim}{10}^{2} \mathrm{GeV}

Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models

, a field of sufficient intensity to seed different mechanisms of galactic magnetic field generation, while still consistent with observational and theoretical constraints, is created coherently over a galactic scale.