Saddle point inflation in string-inspired theory
  The observed value of the Higgs mass indicates the possibility that there is
no supersymmetry below the Planck scale and that the Higgs can play the role of
the inflaton. We examine the general structure of the saddle point inflation in
string-inspired theory without supersymmetry. We point out that the string
scale is fixed to be around the GUT scale $\sim10^{16}$GeV in order to realize
successful inflation. We find that the inflaton can be naturally identified
with the Higgs field.
