337 citations · 6.1k across the 141 of their papers we have counts for
10 papers · 1 filter
Brane-world black holes and the scale of gravity
G. L. Alberghi, R. Casadio, O. Micu +1
A particle in four dimensions should behave like a classical black hole if the horizon radius is larger than the Compton wavelength or, equivalently, if its degeneracy (measured by…
String Gas Baryogenesis
G. L. Alberghi
We describe a possible realization of the spontaneous baryogenesis mechanism in the context of extra-dimensional string cosmology and specifically in the string gas scenario.
Vacuum Energy and Standard Model Physics
G. L. Alberghi, A. Y. Kamenshchik, A. Tronconi +2
The conditions for the cancellation of one loop contributions to vacuum energy (both U.V. divergent and finite) coming from the Standard Model (SM) fields are examined. It is prove…
Cosmological Unparticle Correlators
G. L. Alberghi, A. Yu. Kamenshchik, A. Tronconi +2
We introduce and study an extension of the correlator of unparticle matter operators in a cosmological environment. Starting from FRW spaces we specialize to a de Sitter spacetime…
Inflation and the semiclassical dynamics of a conformal scalar field
G. L. Alberghi, C. Appignani, R. Casadio +2
We derive the semiclassical evolution of massless conformally coupled scalar matter in the de Sitter space-time from the Born-Oppenheimer reduction of the Wheeler-DeWitt equation.…
Planck scale inflationary spectra from quantum gravity
Gian Luigi Alberghi, Roberto Casadio, Alessandro Tronconi
We derive the semiclassical evolution of massless minimally coupled scalar matter in the de Sitter space-time from the Born-Oppenheimer reduction of the Wheeler-DeWitt equation. We…