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Ω0< 1 from inflation

Authors
Journal
Nuclear Physics B - Proceedings Supplements
0920-5632
Publisher
Elsevier
Publication Date
Volume
43
Identifiers
DOI: 10.1016/0920-5632(95)00473-m

Abstract

An inflationary scenario that leads to Ω 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.

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