Complementary probes of inflationary cosmology
  A rigorous constraint analysis on cosmic inflation entails several probes
which collectively survey an extensive range of energy scales. We complement
the cosmic microwave background data with an updated compilation of the cosmic
abundance limits of primordial black holes, with which we infer stringent
constraints on the runnings of the scalar spectral index. These constraints are
notably improved by further including imminent measurements of the cosmic
microwave background spectral distortions, clearly illustrating the
effectiveness of joint large-scale and small-scale cosmological surveys.
