Initial conditions for supersymmetric inflation

We perform a numerical investigation of the field evolution in the supersymmetric inflationary model based on radiative corrections. Supergravity corrections are also included. We find that, out of all the examined initial data, only about 10% give an adequate amount of inflation and can be considered as open-quotes natural.close quotes Moreover, these successful initial conditions appear scattered and more or less isolated. copyright 1997 The American Physical Society