Abstract (EN):
It is shown that a nonminimal coupling between the scalar curvature and the matter Lagrangian density may account for the accelerated expansion of the Universe and provide, through mimicking, for a viable unification of dark energy and dark matter. An analytical exploration is first performed, and a numerical study is then used to validate the obtained results. The encountered scenario allows for a better grasp of the proposed mechanism, and sets up the discussion for improvements that can lead to a complete agreement with the observational data.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Contacto:
orfeu@cosmos.ist.utl.pt; pedro.frazao@ist.utl.pt; paramos@ist.edu
Nº de páginas:
10