${\mathrm{\Omega }}_0<1$ From Inflation

An inflationary scenario that leads to ${\mathrm{\Omega }}_0<1$ today is presented. An epoch of old' inflation during which the smoothness and horizon problems are solved is followed by a shortened epoch of new’ inflation. Old inflation exits through the nucleation of a single bubble, leading to negative spatial curvature on slices of constant cosmic time. We calculate the spectrum of density perturbations in such a scenario.