2.4k citations · 37.2k across the 304 of their papers we have counts for
13 papers · 1 filter
Non-linear perturbations in scalar-tensor cosmologies
F. Perrotta, S. Matarrese, M. Pietroni +1
Can local fluctuations of a ``Quintessence'' scalar field play a dynamical role in the gravitational clustering and cosmic structure formation process? We address this question in…
Influence of Super-Horizon Scales on Cosmological Observables Generated during Inflation
Sabino Matarrese, Marcello A. Musso, Antonio Riotto
Using the techniques of out-of-equilibrium field theory, we study the influence on the properties of cosmological perturbations generated during inflation on observable scales comi…
CMB polarization from secondary vector and tensor modes
Silvia Mollerach, Diego Harari, Sabino Matarrese
We consider a novel contribution to the polarization of the Cosmic Microwave Background induced by vector and tensor modes generated by the non-linear evolution of primordial scala…
On Non-Gaussianity in the Curvaton Scenario
N. Bartolo, S. Matarrese, A. Riotto
Since a positive future detection of non-linearity in the cosmic microwave background anisotropy pattern might allow to descriminate among different mechanisms giving rise to cosmo…
The bispectrum of the Lyman-alpha forest at z~2-2.4 from a Large sample of UVES QSO Absorption Spectra (LUQAS)
M. Viel, S. Matarrese, A. Heavens +4
We present a determination of the bispectrum of the flux in the Lyman-alpha forest of QSO absorption spectra obtained from LUQAS which consists of spectra observed with the high re…
Constraints on extended quintessence from high-redshift Supernovae
Paolo Caresia, Sabino Matarrese, Lauro Moscardini
We obtain constraints on quintessence models from magnitude-redshift measurements of 176 type Ia Supernovae. The considered quintessence models are ordinary quintessence, with Ratr…