116 citations · 223 across the 7 of their papers we have counts for
6 papers · 1 filter
Hidden Inflaton Dark Matter
Juan P. Beltrán Almeida, Nicolás Bernal, Javier Rubio +1
If cosmic inflation was driven by an electrically neutral scalar field stable on cosmological time scales, the field necessarily constitutes all or part of dark matter (DM). We stu…
Mimicking alternatives to inflation with interacting spectator fields
Guillem Domènech, Javier Rubio, Julius Wons
It has been argued that oscillatory features from spectator fields in the primordial power spectrum could be a probe of alternatives to inflation. In this work, we soften this clai…
Scale-invariant alternatives to general relativity. III. The inflation--dark-energy connection
Santiago Casas, Georgios K. Karananas, Martin Pauly +1
We discuss the cosmological phenomenology of biscalar-tensor models displaying a maximally symmetric Einstein-frame kinetic sector and constructed on the basis of scale symmetry an…
Gravitational waves from global cosmic strings in quintessential inflation
Dario Bettoni, Guillem Domènech, Javier Rubio
The combination of non-minimal couplings to gravity with the post-inflationary kinetic-dominated era typically appearing in quintessential inflation scenarios may lead to the spont…
Higgs inflation
Javier Rubio
The properties of the recently discovered Higgs boson together with the absence of new physics at collider experiments allows us to speculate about consistently extending the Stand…
Quintessential Affleck-Dine baryogenesis with non-minimal couplings
Dario Bettoni, Javier Rubio
We present a novel Affleck-Dine scenario for the generation of the observed baryon asymmetry of the Universe based on the non-trivial interplay between quintessential inflationary…