242 citations · 976 across the 9 of their papers we have counts for
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Origin of the blackhole information paradox
Ram Brustein
It is argued that the blackhole information paradox originates from treating the blackhole geometry as strictly classical. It is further argued that the theory of quantum fields in…
Duality in cosmological perturbation theory
R. Brustein, M. Gasperini, G. Veneziano
Cosmological perturbation equations derived from low-energy effective actions are shown to be invariant under a duality transformation reminiscent of electric-magnetic, strong-weak…
Peak and end point of the relic graviton background in string cosmology
R. Brustein, M. Gasperini, G. Veneziano
Using general arguments we determine the allowed region for the end point frequency and the peak energy density of the stochastic background of gravity waves expected in string cos…
Relic Gravitational Waves from String Cosmology
R. Brustein, M. Gasperini, M. Giovannini +1
A large class of string-cosmology backgrounds leads to a spectrum of relic stochastic gravitational waves, strongly tilted towards high frequencies, and characterized by two basic…
Metric Perturbations in Dilaton-Driven Inflation
R. Brustein, M. Gasperini, M. Giovannini +2
We compute the spectrum of scalar and tensor metric perturbations generated, as amplified vacuum fluctuations, during an epoch of dilaton-driven inflation of the type occurring nat…
The Graceful Exit Problem in String Cosmology
R. Brustein, G. Veneziano
Isotropic string cosmology solutions can be classified into two duality related branches: one can be connected smoothly to an expanding Friedman-Robertson-Walker Universe, the othe…