My main research interest lies in theoretical cosmology. I am interested in explaining the late time acceleration of the Universe. I am also studying how the structure in our Universe evolved from small fluctuations into a non-linear regime.
Within the context of general relativity, the observed accelerated expansion can be explained by invoking Einstein cosmological. However, a dynamical form of dark energy may exist which could possibly interact with dark matter. For this reason, I also work on interacting dark energy-dark matter models and in unified dark matter models in which a single dark component tries to explain both the acceleration and structure formation.
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Lastest publications at IAI. Leanizbarrutia, A. Rozas-FernŠndez, I. Tereno, 2017,
Cosmological constraints on a unified dark matter-energy scalar field model with fast transition,
Physical Review D, 96, 10
>> AbstractA. Rozas-FernŠndez, 2017,
Stability and emergence of gravitational waves in the quantum cosmic phantom models,
General Relativity and Gravitation, 49, 93
>> AbstractP. F. GonzŠlez-DŪaz, A. Rozas-FernŠndez, 2017,
On a Quantum Theory of Relativity,
International Journal of Theoretical Physics, 56, 9