56 citations · 139 across the 5 of their papers we have counts for
5 papers
Constraints on pre-big bang parameter space from CMBR anisotropies
V. Bozza, M. Gasperini, M. Giovannini +1
The so-called curvaton mechanism --a way to convert isocurvature perturbations into adiabatic ones-- is investigated both analytically and numerically in a pre-big bang scenario wh…
Assisting pre-big bang phenomenology through short-lived axions
V. Bozza, M. Gasperini, M. Giovannini +1
We present the results of a detailed study of how isocurvature axion fluctuations are converted into adiabatic metric perturbations through axion decay, and discuss the constraints…
Scalar fluctuations in dilatonic brane-worlds
V. Bozza, M. Gasperini, G. Veneziano
We derive and solve the full set of scalar perturbation equations for a class of five-dimensional brane--world solutions, with a dilaton scalar field coupled to the bulk cosmologic…
Localization of Scalar Fluctuations in a Dilatonic Brane-World Scenario
V. Bozza, M. Gasperini, G. Veneziano
We derive and solve the full set of scalar perturbation equations for a class of -symmetric five-dimensional geometries generated by a bulk cosmological constant and by a 3-br…
O(d,d)-invariant collapse/inflation from colliding superstring waves
Valerio Bozza, Gabriele Veneziano
Generalizing previous work, we study the collision of massless superstring plane waves in D space-time dimensions within an explicitly O(D-2,D-2)-invariant set of field equations.…