530 citations · 3.5k across the 44 of their papers we have counts for
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Observables and unobservables in dark energy cosmologies
Luca Amendola, Martin Kunz, Mariele Motta +2
The aim of this paper is to answer the following two questions: (1) Given cosmological observations of the expansion history and linear perturbations in a range of redshifts and sc…
Consistent perturbations in an imperfect fluid
Ignacy Sawicki, Ippocratis D. Saltas, Luca Amendola +1
We present a new prescription for analysing cosmological perturbations in a more-general class of scalar-field dark-energy models where the energy-momentum tensor has an imperfect-…
f(R) Gravity from the renormalisation group
Mark Hindmarsh, Ippocratis D. Saltas
We explore the cosmological dynamics of an effective f(R) model constructed from a renormalisation group (RG) improvement of the Einstein--Hilbert action, using the non-perturbativ…