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On the non-Gaussianity from Recombination
Nicola Bartolo, Antonio Riotto
The non-linear effects operating at the recombination epoch generate a non-Gaussian signal in the CMB anisotropies. Such a contribution is relevant because it represents a major pa…
CMBPol Mission Concept Study: Probing Inflation with CMB Polarization
Daniel Baumann, Mark G. Jackson, Peter Adshead +56
We summarize the utility of precise cosmic microwave background (CMB) polarization measurements as probes of the physics of inflation. We focus on the prospects for using CMB measu…
One-loop graviton corrections to the curvature perturbation from inflation
Emanuela Dimastrogiovanni, Nicola Bartolo
We compute one-loop corrections to the power spectrum of the curvature perturbation in single-field slow-roll inflation arising from gravitons and inflaton interactions. The quantu…
How the Scalar Field of Unified Dark Matter Models Can Cluster
Daniele Bertacca, Nicola Bartolo, Antonaldo Diaferio +1
We use scalar-field Lagrangians with a non-canonical kinetic term to obtain unified dark matter models where both the dark matter and the dark energy, the latter mimicking a cosmol…
The impact of cosmic neutrinos on the gravitational-wave background
A. Mangilli, N. Bartolo, S. Matarrese +1
We obtain the equation governing the evolution of the cosmological gravitational-wave background, accounting for the presence of cosmic neutrinos, up to second order in perturbatio…
Halos of Unified Dark Matter Scalar Field
Daniele Bertacca, Nicola Bartolo, Sabino Matarrese
We investigate the static and spherically symmetric solutions of Einstein's equations for a scalar field with non-canonical kinetic term, assumed to provide both the dark matter an…