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Trends in Large Scale Structure Observations and the Likelihood of Early Reionization
Andrew R Liddle, David H Lyth
With the imminent promise of constraints on the epoch of reionization from observations of microwave background anisotropies, the question of whether or not the standard Cold Dark…
False Vacuum Chaotic Inflation: The New Paradigm?
David H. Lyth, Ewan D. Stewart
Recent work is reported on inflation model building in the context of supergravity and superstrings, with special emphasis on False Vacuum (`Hybrid') Chaotic Inflation. Globally su…
Interpreting Large Scale Structure Observations
David H Lyth, Andrew R Liddle
The standard model of large scale structure is considered, in which the structure originates as a Gaussian adiabatic density perturbation with a nearly scale invariant spectrum. Th…
False Vacuum Inflation with Einstein Gravity
Edmund J Copeland, Andrew R Liddle, David H Lyth +2
We investigate chaotic inflation models with two scalar fields, such that one field (the inflaton) rolls while the other is trapped in a false vacuum state. The false vacuum become…
Observational Constraints on the Spectral Index
Andrew R Liddle, David H Lyth
We address the possibility of bounding the spectral index of primordial density fluctuations, using both the cosmic microwave background (cmb) anisotropy and data on galaxies a…