QCD Axion Kinetic Misalignment: Observational Aspects
  When the spontaneous breaking of the Peccei-Quinn (PQ) symmetry occurred, the
resulting angular direction of the PQ field, i.e., the axion could have
possessed an initial non-zero velocity arising from additional terms that
explicitly break the PQ symmetry. This opens up the possibility for smaller
values of the decay constant than in the conventional scenario. We elaborate
further on the outcome of this ``kinetic misalignment'' framework, assuming
that axions form the entirety of the dark matter abundance. The kinetic
misalignment framework possesses a {\it weak} limit in which the axion field
starts to oscillate at the same temperature as in the conventional scenario,
and a {\it strong} limit corresponding to large initial velocities which delay
the onset of oscillations. We show how this scenario impacts the formation of
axion miniclusters, and we sketch the details of these substructures along with
potential detecting signatures.
