  Hidden symmetries provide a powerful tool for finding exact solutions in
multifield cosmological models. We review how, using such symmetries, one can
find inflationary solutions in two-field models, which lead to the generation
of primordial black holes. We also discuss an exact solution in a two-field
cosmological model, which describes dark energy. This solution is obtained with
the use of a hidden symmetry, although the latter is broken by a constant term
in the scalar potential. All of the above solutions are characterized by
field-space trajectories with rapid turns.

High Energy Physics - Theory;Cosmology and Nongalactic Astrophysics