148 citations · 1.1k across the 45 of their papers we have counts for
43 papers
Quantum slow-roll and quantum fast-roll inflationary initial conditions: CMB quadrupole suppression and further effects on the low CMB multipoles
F. J. Cao, H. J. de Vega, N. G. Sanchez
Quantum fast-roll initial conditions for the inflaton which are different from the classical fast-roll conditions and from the quantum slow-roll conditions can lead to inflation th…
The dark matter transfer function: free streaming, particle statistics and memory of gravitational clustering
D. Boyanovsky, H. J. de Vega, N. Sanchez
The transfer function of dark matter (DM) perturbations during matter domination is obtained by solving the collisionless Boltzmann-Vlasov equation. We find an \emph{exact}…
The CMB Quadrupole depression produced by early fast-roll inflation: MCMC analysis of WMAP and SDSS data
C. Destri, H. J. de Vega, N. G. Sanchez
Generically,the classical evolution of the inflaton has a brief fast roll stage that precedes the slow roll regime. The fast roll stage leads to a purely attractive potential for t…
MCMC analysis of WMAP3 and SDSS data points to broken symmetry inflaton potentials and provides a lower bound on the tensor to scalar ratio
C. Destri, H. J. de Vega, N. G. Sanchez
We perform a MCMC (Monte Carlo Markov Chains) analysis of the available CMB and LSS data (including the three years WMAP data) with single field slow-roll new inflation and chaotic…
New Inflation vs. Chaotic Inflation, Higher Degree Potentials and the Reconstruction Program in light of WMAP3
D. Boyanovsky, H. J. de Vega, C. M. Ho +1
The CMB power spectra are studied for different families of single field new and chaotic inflation models in the effective field theory approach to inflation. We implement a system…
CMB quadrupole suppression: I. Initial conditions of inflationary perturbations
D. Boyanovsky, H. J. de Vega, N. G. Sanchez
We investigate the issue of initial conditions of curvature and tensor perturba- tions at the beginning of slow roll inflation and their effect on the power spectra. Renormalizabil…