Open Inflation Without False Vacua

Details Open Inflation Without False Vacua Open Inflation Without False Vacua

1998-02-05

arxiv.org/abs/hep-th/9802030v1

Phys.Lett. B425 (1998) 25-32

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, compressed and RevTex file with one postscript figure, openlet1.ps

Scientific paper

10.1016/S0370-2693(98)00234-2

We show that within the framework of a definite proposal for the initial conditions for the universe, the Hartle-Hawking `no boundary' proposal, open inflation is generic and does not require any special properties of the inflaton potential. In the simplest inflationary models, the semiclassical approximation to the Euclidean path integral and a minimal anthropic condition lead to $\Omega_0\approx 0.01$. This number may be increased in models with more fields or extra dimensions.

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