10 citations · 19 across the 3 of their papers we have counts for
9 papers · 1 filter
Non-local dilaton coupling to dark matter: cosmic acceleration and pressure backreaction
L. Amendola, M. Gasperini, C. Ungarelli
A model of non-local dilaton interactions, motivated by string duality symmetries, is applied to a scenario of "coupled quintessence" in which the dilaton dark energy is non-locall…
Response of the common mode of interferometric detectors to a stochastic background of massive scalar radiation
N. Bonasia, M. Gasperini
We compute the angular pattern and the overlap reduction functions for the geodesic and non-geodesic response of the common mode of two interferometers interacting with a stochasti…
Towards a future singularity?
M. Gasperini
We discuss whether the future extrapolation of the present cosmological state may lead to a singularity even in case of "conventional" (negative) pressure of the dark energy field,…
Phenomenology of the relic dilaton background
M. Gasperini
We discuss the expected amplitude of a cosmic background of massive, non-relativistic dilatons, and we report recent results about its possible detection. This paper is a contracte…
Production and detection of relic dilatons in string cosmology
M. Gasperini
This paper summarizes the contribution presented at the {\sl IX Marcel Grossmann Meeting} (Rome, July 2000). It is stressed, in particular, that a non-relativistic background of ul…
Weighing the string mass with the COBE data
M. Gasperini
In the context of the pre-big bang scenario the large-scale CMB anisotropy can be seeded by a primordial background of very light (or massless) axion fluctuations. In that case the…