Exact Solutions and Scalar Fields in Gravity - Instituto Avanzado de ...

Scalar field dark matter 171
of dark matter and dark energy are the observed ones [10, 11, 16]. We
recovered the standard cosmological evolution and then we can see that
potentials (1,2) are reliable models of dark energy and dark matter in
the Universe.
2.3. SCALAR POWER SPECTRUM FOR
DARK MATTER
In this section, we analyze the perturbations of the space due to the
presence of the scalar fields First, we consider a linear perturbation
of the space given by We will work in the synchronous gauge
formalism, where the line element is
We must add the perturbed equations for the scalar fields
and [14, 17]