101 citations · 356 across the 6 of their papers we have counts for
5 papers · 1 filter
Oscillations in the inflaton potential?
Cédric Pahud, Marc Kamionkowski, Andrew R Liddle
We consider a class of inflationary models with small oscillations imprinted on an otherwise smooth inflaton potential. These oscillations are manifest as oscillations in the power…
Triple unification of inflation, dark matter, and dark energy using a single field
Andrew R. Liddle, Cédric Pahud, L. Arturo Ureña-López
We construct an explicit scenario whereby the same material driving inflation in the early Universe can comprise dark matter in the present Universe, using a simple quadratic poten…
When can the Planck satellite measure spectral index running?
Cédric Pahud, Andrew R. Liddle, Pia Mukherjee +1
We use model selection forecasting to assess the ability of the Planck satellite to make a positive detection of spectral index running. We simulate Planck data for a range of assu…
Intermediate inflation in light of the three-year WMAP observations
John D Barrow, Andrew R Liddle, Cédric Pahud
The three-year observations from the Wilkinson Microwave Anisotropy Probe have been hailed as giving the first clear indication of a spectral index n_s<1. We point out that the dat…
Model selection forecasts for the spectral index from the Planck satellite
Cédric Pahud, Andrew R Liddle, Pia Mukherjee +1
The recent WMAP3 results have placed measurements of the spectral index n_S in an interesting position. While parameter estimation techniques indicate that the Harrison-Zel'dovich…