Reheating-Induced Axion Dark Matter After Low Scale Inflation
  A kinetic mixing between the axion and the inflaton allows for a production
of axion dark matter even if the inflationary Hubble scale is smaller than the
zero-temperature axion mass. We analyze the axion dynamics in this recently
discovered "inflaxion" framework, and present a new cosmological scenario where
the axion drifts away from its vacuum during the reheating epoch, giving rise
to the observed dark matter abundance. We discuss the implications for both the
QCD axion and axion-like particles.
