  The effect of a diffusivity edge is studied in a system of scalar active
matter confined by a periodic potential and driven by an externally applied
force. We find that this system shows qualitatively distinct stationary regimes
depending on the amplitude of the driving force with respect to the potential
barrier. For small driving, the diffusivity edge induces a transition to a
condensed phase analogous to the Bose-Einstein-like condensation reported for
the nondriven case, which is characterized by a density-independent steady
state current. Conversely, large external forces lead to a qualitatively
different phase diagram since in this case condensation is only possible beyond
a given density threshold, while the associated transition at higher densities
is found to be reentrant.
