A Toy Model for Open Inflation

Abstract

The open inflation scenario based on the theory of bubble formation in the models of a single scalar field suffered from a fatal defect. In all the versions of this scenario known so far, the Coleman-De Luccia instantons describing the creation of an open universe did not exist. We propose a simple one-field model where the CDL instanton does exist and the open inflation scenario can be realized.

7 pages, 4 figures, revtex, a discussion of density perturbations is extended

References in corpus (5)

• Open Inflation Without False Vacua
• Quantum Creation of an Open Inflationary Universe
• Quasi-open inflation
• Quantum Creation of a Universe with $\Omega \ne 1$: Singular and Non-Singular Instantons
• Wall fluctuation modes and tensor CMB anisotropy in open inflation models

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