65 citations · 160 across the 11 of their papers we have counts for
11 papers
Kinetic coupled tachyon: A dynamical system analysis
Francesco Pace, Alberto Rozas-Fernández, Özgen Tunç Türker
We present and examine a kinetically coupled tachyon dark energy model, where a tachyon scalar field interacts with the matter sector. More specifically, we deduce this cosmologica…
K-essential covariant holography
Alberto Rozas-Fernández
The holographic principle is applied to a flat Friedmann-Robertson-Walker space-time dominated by dark energy when this is due to the presence of a k-essence scalar field, both for…
Covariant holography of a tachyonic accelerating universe
Alberto Rozas-Fernández
We apply the holographic principle to a flat dark energy dominated Friedmann-Robertson-Walker spacetime filled with a tachyon scalar field with constant equation of state ,…
Phenomenological models for Unified Dark Matter with fast transition
Marco Bruni, Ruth Lazkoz, Alberto Rozas-Fernandez
A fast transition between a standard matter-like era and a late cold dark matter (CDM)-like epoch (or more in general, a CDM+DE era), generated by a single Unified Dark Matt…
Kinetic k-essence ghost dark energy model
Alberto Rozas-Fernandez
A ghost dark energy model has been recently put forward to explain the current accelerated expansion of the Universe. In this model, the energy density of ghost dark energy, which…
Multidimensional quantum cosmic models: New solutions and gravitational waves
Pedro F. Gonzalez-Diaz, Alberto Rozas-Fernandez
This paper contains a discussion on the quantum cosmic models, starting with the interpretation that all of the accelerating effects in the current universe are originated from the…