Description
The late time acceleration of the Universe can be characterized in terms of an
extra, time dependent, component of the universe -- dark energy. The simplest
proposal for dark energy is quintessence, a scalar field, $\phi$, whose
dynamics is solely dictated by its potential, $V(\phi)$. In this simple case,
just an extra function of the background is necessary to describe the
evolution of the dark energy density. We find its time dependence for a broad
family of potentials. Using this information, we propose a parametrization
which is accurate and in terms of which we construct physical priors for
quintessence.
Authors
Carlos Garcia-Garcia
(IFF-CSIC)
Emilio Bellini
Pedro Ferreira
Dina Traykova
Miguel Zumalacarregui
Co-authors
Pilar Ruiz-Lapuente
Miguel Zumalacarregui
