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Future CMB ISW-Lensing bispectrum constraints on modified gravity in the Parameterized Post-Friedmann formalism
Bin Hu, Michele Liguori, Nicola Bartolo +1
We forecast the constraints on both Hu-Sawicki model and Bertschinger-Zukin model of modified gravity within the Parameterized Post-Friedmann (PPF) formalism for the Planck satelli…
The anisotropic power spectrum and bispectrum in the f(phi) F^2 mechanism
Nicola Bartolo, Sabino Matarrese, Marco Peloso +1
A suitable coupling of the inflaton phi to a vector kinetic term F^2 gives frozen and scale invariant vector perturbations. We compute the cosmological perturbations zeta that resu…
Testing Gravity Using Large-Scale Redshift-Space Distortions
Alvise Raccanelli, Daniele Bertacca, Davide Pietrobon +6
We use Luminous Red Galaxies from the Sloan Digital Sky Survey II to test the cosmological structure growth in two alternatives to the standard LCDM+GR cosmological model. We compa…
Cosmology and fundamental physics with the Euclid satellite
Luca Amendola, Stephen Appleby, David Bacon +60
Euclid is a European Space Agency medium class mission selected for launch in 2019 within the Cosmic Vision 2015-2025 programme. The main goal of Euclid is to understand the origin…
Electromagnetic field fluctuations near a dielectric-vacuum boundary and surface divergences in the ideal conductor limit
Nicola Bartolo, Roberto Passante
We consider the electric and magnetic field fluctuations in the vacuum state in the region external to a half-space filled with a homogeneous non-dissipative dielectric. We discuss…
Spherical Collapse in covariant Galileon theory
Emilio Bellini, Nicola Bartolo, Sabino Matarrese
In this paper we study the evolution of a spherical matter overdensity in the context of the recently introduced Galileon field theory. Our analysis considers the complete covarian…