In a previous paper I showed that a classical scalar potential with $V^{″}/V\sim 1$ can be sufficiently flattened by quantum corrections to give rise to slow-roll inflation. In this paper I give a hybrid inflation implementation of that idea which can naturally produce a spectral index in the observationally viable range even for $V^{1/4}\sim {10}^{10}$–${10}^{11}$ GeV. Although any observationally viable spectral index can be obtained, the model does predict a distinctive spectral shape.

• Received 4 March 1997

DOI:https://doi.org/10.1103/PhysRevD.56.2019