Cosmological scalar fields and Big-Bang nucleosynthesis
  Scalar fields are widely used in cosmology, in particular to emulate dark
energy, for example in quintessence models, or to explain dark matter, in
particular within the fuzzy dark matter model. In addition many scenarios
involving primordial scalar fields which could have driven inflation or
baryogenesis are currently under scrutiny. In this article, we study the impact
of such scalar fields on Big-Bang nucleosynthesis and derive constraints on
their parameters using the observed abundance of the elements.
