Axionlike Origin of the Primordial Density Perturbation
  We show that an axionlike field coupled to a new confining gauge group can
generate the primordial density perturbation in the post-inflation universe.
The axion decay constant and strong coupling scale are uniquely determined by
observations of the density perturbation, which further suggest a temporal
deconfinement of the gauge group after inflation. The resulting
temperature-dependent axion potential, together with its periodic nature, gives
rise to the red-tilted density perturbation, with a positive local-type
non-Gaussianity of order unity.
