983 citations · 3.6k across the 80 of their papers we have counts for
81 papers
From the string vacuum to FLRW or de Sitter via corrections
P. Conzinu, G. Fanizza, M. Gasperini +3
We first make more precise a recent "Hamiltonian" reformulation of the Hohm-Zwiebach approach to the tree-level, -invariant string cosmology equations at all orders in the…
A Simple, Exact Formulation of Number Counts in the Geodesic-Light-Cone Gauge
G. Fanizza, M. Gasperini, G. Marozzi
In this article, we compare different formulations of the number count prescription using the convenient formalism of the Geodesic-Light-Cone gauge. We then find a simple, exact, a…
Non-singular pre-big bang scenarios from all-order corrections
M. Gasperini, G. Veneziano
We reformulate in Hamiltonian language the recent proposal by Hohm and Zwiebach of an action yielding the most general -symmetric string cosmology equations, at tree-level…
From pre- to post-big bang: an (almost) self-dual cosmological history
M. Gasperini
We present a short introduction to a non-standard cosmological scenario motivated by the duality symmetries of string theory, in which the big bang singularity is replaced with a "…
Linearized propagation equations for metric fluctuations in a general (non-vacuum) background geometry
G. Fanizza, M. Gasperini, E. Pavone +1
The linearized dynamical equation for metric perturbations in a fully general, non-vacuum, background geometry is obtained from the Hamilton variational principle applied to the ac…
Gravity at Finite Temperature, Equivalence Principle,and Local Lorentz Invariance
M. Gasperini
In this Chapter we illustrate the close connection between the violation of the weak equivalence principle typical of gravitational interactions at finite temperature, and similar…