The Early Universe with High-Scale Supersymmetry
  A small tensor-to-scalar ratio $r$ may lead to distinctive phenomenology of
high-scale supersymmetry. Assuming the same origin of SUSY breaking between the
inflation and visible sector, we show model independent features. The simplest
hybrid inflation, together with a new linear term for the inflaton field which
is induced by large gravitino mass, is shown to be consistent with all
experimental data for $r$ of order $10^{-5}$. For superpartner masses far above
the weak scale we find that the reheating temperature after inflation might be
beneath the value required by thermal leptogenesis if the inflaton decays to
its products perturbatively, but above it if non-perturbatively instead.
Remarkably, the gravitino overproduction can be evaded in such high-scale
supersymmetry because of the kinematically blocking effect.
