  We present a microscopic study on current generation in graphene in response
to an electric field. While scattering is generally considered to reduce the
current, we reveal that in graphene Auger processes give rise to a current
enhancement via a phenomenon we denote dark carrier multiplication. Based on a
microscopic approach, we show that, if other scattering channels are absent,
this prevents the carrier distribution to reach a stationary value. Taking into
account scattering with phonons a finite current is restored, however its value
exceeds the stationary current without scattering.
