10.6k citations · 46.2k across the 259 of their papers we have counts for
8 papers · 1 filter
Signatures of Primordial non-Gaussianities in the Matter Power-Spectrum and Bispectrum: the Time-RG Approach
Nicola Bartolo, J. P. Beltran Almeida, Sabino Matarrese +2
We apply the time-renormalization group approach to study the effect of primordial non-Gaussianities in the non-linear evolution of cosmological dark matter density perturbations.…
Anisotropic Trispectrum of Curvature Perturbations Induced by Primordial Non-Abelian Vector Fields
Nicola Bartolo, Emanuela Dimastrogiovanni, Sabino Matarrese +1
Motivated by the interest in models of the early universe where statistical isotropy is broken and can be revealed in cosmological observations, we consider an SU(2) theory of gaug…
Anisotropic bispectrum of curvature perturbations from primordial non-Abelian vector fields
Nicola Bartolo, Emanuela Dimastrogiovanni, Sabino Matarrese +1
We consider a primordial SU(2) vector multiplet during inflation in models where quantum fluctuations of vector fields are involved in producing the curvature perturbation. Recentl…
Observing the Evolution of the Universe
James Aguirre, Alexandre Amblard, Amjad Ashoorioon +172
How did the universe evolve? The fine angular scale (l>1000) temperature and polarization anisotropies in the CMB are a Rosetta stone for understanding the evolution of the univers…
CMB anisotropies at second order III: bispectrum from products of the first-order perturbations
Daisuke Nitta, Eiichiro Komatsu, Nicola Bartolo +2
We calculate the bispectrum of the Cosmic Microwave Background (CMB) temperature anisotropies induced by the second-order fluctuations in the Boltzmann equation. In this paper, whi…
The Origin of the Universe as Revealed Through the Polarization of the Cosmic Microwave Background
S. Dodelson, R. Easther, S. Hanany +61
Modern cosmology has sharpened questions posed for millennia about the origin of our cosmic habitat. The age-old questions have been transformed into two pressing issues primed for…