4.1k citations · 31.4k across the 275 of their papers we have counts for
11 papers · 1 filter
Multi-field inflation with random potentials: field dimension, feature scale and non-Gaussianity
Jonathan Frazer, Andrew R Liddle
We explore the super-horizon evolution of the two-point and three-point correlation functions of the primordial density perturbation in randomly-generated multi-field potentials. W…
Optimizing future dark energy surveys for model selection goals
Catherine Watkinson, Andrew R. Liddle, Pia Mukherjee +1
We demonstrate a methodology for optimizing the ability of future dark energy surveys to answer model selection questions, such as `Is acceleration due to a cosmological constant o…
The XMM Cluster Survey: Predicted overlap with the Planck Cluster Catalogue
Pedro T. P. Viana, António da Silva, Elsa P. R. G. Ramos +13
We present a list of 15 clusters of galaxies, serendipitously detected by the XMM Cluster Survey (XCS), that have a high probability of detection by the Planck satellite. Three of…
Non-gaussianity in axion N-flation models: detailed predictions and mass spectra
Soo A Kim, Andrew R Liddle, David Seery
We have recently shown that multi-field axion N-flation can lead to observable non-gaussianity in much of its parameter range, with the assisted inflation mechanism ensuring that t…
Unification models with reheating via primordial black holes
J. C. Hidalgo, L. Arturo Urena-Lopez, Andrew R. Liddle
We study the possibility of reheating the universe through the evaporation of primordial black holes created at the end of inflation. This is shown to allow for the unification of…
On the prior dependence of constraints on the tensor-to-scalar ratio
Marina Cortês, Andrew R. Liddle, David Parkinson
We investigate the prior dependence of constraints on cosmic tensor perturbations. Commonly imposed is the strong prior of the single-field inflationary consistency equation, relat…