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Inflation, structure formation and dark matter
Andrew R Liddle, Pedro T P Viana
The formation of structure in the Universe offers some of the most powerful evidence in favour of the existence of dark matter in the Universe. We summarize recent work by ourselve…
Complete power spectrum for an induced gravity open inflation model
Juan Garcia-Bellido, Andrew R Liddle
We study the phenomenological constraints on a recently proposed model of open inflation in the context of induced gravity. The main interest of this model is the relatively small…
Normalization of modes in an open universe
Juan Garcia-Bellido, Andrew R Liddle, David H Lyth +1
We discuss the appropriate normalization of modes required to generate a homogeneous random field in an open Friedmann-Robertson-Walker universe. We consider scalar random fields a…
Four-year COBE normalization of inflationary cosmologies
Emory F Bunn, Andrew R Liddle, Martin White
We supply fitting formulae enabling the normalization of slow-roll inflation models to the four-year COBE data. We fully include the effect of the gravitational wave modes, includi…
Open Inflationary Universes in the Induced Gravity Theory
Anne M Green, Andrew R Liddle
The induced gravity theory is a variant of Jordan--Brans--Dicke theory where the `dilaton' field possesses a potential. It has the unusual feature that in the presence of a false v…
Accurate determination of inflationary perturbations
Ian J Grivell, Andrew R Liddle
We use a numerical code for accurate computation of the amplitude of linear density perturbations and gravitational waves generated by single-field inflation models to study the ac…