Title: Unified Model of Chaotic Inflation and Dynamical Supersymmetry Breaking,
Abstract: The large hierarchy between the Planck scale and the weak scale can be
explained by the dynamical breaking of supersymmetry in strongly coupled gauge
theories. Similarly, the hierarchy between the Planck scale and the energy
scale of inflation may also originate from strong dynamics, which dynamically
generate the inflaton potential. We present a model of the hidden sector which
unifies these two ideas, i.e., in which the scales of inflation and
supersymmetry breaking are provided by the dynamics of the same gauge group.
The resultant inflation model is chaotic inflation with a fractional power-law
potential in accord with the upper bound on the tensor-to-scalar ratio. The
supersymmetry breaking scale can be much smaller than the inflation scale, so
that the solution to the large hierarchy problem of the weak scale remains
intact. As an intrinsic feature of our model, we find that the sgoldstino,
which might disturb the inflationary dynamics, is automatically stabilized
during inflation by dynamically generated corrections in the strongly coupled
sector. This renders our model a field-theoretical realization of what is
sometimes referred to as sgoldstino-less inflation.