Inflation from the Finite Scale Gauged Nambu-Jona-Lasinio Model
  The possibility to construct an inflationary universe scenario for the
finite-scale gauged Nambu-Jona-Lasinio model is investigated. This model can be
described by the Higgs-Yukawa type interaction model with the corresponding
compositeness scale. Therefore, the one-loop Higgs-Yukawa effective potential
is used with the compositeness condition for the study of inflationary
dynamics. We evaluate the fluctuations in the cosmic microwave background for
the model with a finite compositeness scale in the slow-roll approximation. We
find the remarkable dependence on the gauge group and the number of fermion
flavors. It is also proved that the model has similar behavior with the
$\phi^{4n}$ chaotic inflation and the Starobinsky model at the flat and steep
limits, respectively. It is demonstrated that realistic inflation consistent
with Planck data is possible for a range of theory parameters.
