370 citations · 2.4k across the 38 of their papers we have counts for
5 papers · 1 filter
Instabilities in tensorial nonlocal gravity
Henrik Nersisyan, Yashar Akrami, Luca Amendola +3
We discuss the cosmological implications of nonlocal modifications of general relativity containing tensorial structures. Assuming the presence of standard radiation- and matter-do…
Endlessly flat scalar potentials and -attractors
Michal Artymowski, Javier Rubio
We consider a minimally-coupled inflationary theory with a general scalar potential containing a stationary point of maximal order . We show…
On the geometrical interpretation of scale-invariant models of inflation
Georgios K. Karananas, Javier Rubio
We study the geometrical properties of scale-invariant two-field models of inflation. In particular, we show that when the field-derivative space in the Einstein frame is maximally…
Dynamical analysis of cosmology: Impact of initial conditions and constraints from supernovae
Henrik Nersisyan, Yashar Akrami, Luca Amendola +2
We discuss the cosmological implications of the nonlocal modification to standard gravity. We relax the assumption of special initial conditions in the local formula…
Combined Preheating on the lattice with applications to Higgs inflation
Joël Repond, Javier Rubio
We use classical lattice simulations in 3+1 dimensions to study the interplay between the resonant production of particles during preheating and the subsequent decay of these into…