369 citations · 600 across the 7 of their papers we have counts for
7 papers
Cosmological Magnetogenesis: what we know and what we would like to know
M. Giovannini
Problems and perspectives concerning the existence of large-scale magnetic fields are described. Heeding observations, possible origins and implications of magnetic fields in spira…
Six-dimensional Abelian vortices with quadratic curvature self-interactions
M. Giovannini, H. B. Meyer
Six-dimensional Nielsen-Olesen vortices are analyzed in the context of a quadratic gravity theory containing Euler-Gauss-Bonnet self-interactions. The relations among the string te…
Warped compactification on Abelian vortex in six dimensions
M. Giovannini, H. Meyer, M. Shaposhnikov
We consider the possibility of localizing gravity on a Nielsen-Olesen vortex in the context of the Abelian Higgs model. The vortex lives in a six-dimensional space-time with negati…
Primordial magnetic fields from inflation???
Massimo Giovannini, Mikhail Shaposhnikov
In this note we argue that the breaking of conformal invariance because of the coupling of a charged scalar field to gravity is not sufficient for the production of seed galactic m…
Sensitivity of a VIRGO pair to stochastic GW backgrounds
Danilo Babusci, Massimo Giovannini
The sensitivity of a pair of VIRGO interferometers to gravitational waves backgrounds (GW) of cosmological origin is analyzed for the cases of maximal and minimal overlap of the tw…
Primordial magnetic fields from inflation?
M. Giovannini, M. Shaposhnikov
The hot plasma above the electroweak scale contains (hyper) charged scalar particles which are coupled to Abelian gauge fields. Scalars may interact with gravity in a non-conformal…