The No-Boundary Wave Function and the Duration of the Inflationary Period

Details The No-Boundary Wave Function and the Duration of the Inflationary Period The No-Boundary Wave Function and the Duration of the Inflationary Period

1994-09-07

arxiv.org/abs/gr-qc/9409012v1

Phys.Lett.B347:13-20,1995

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, TUM-HEP-206/94, 2 figures (added as uu-encoded postscript file)

Scientific paper

10.1016/0370-2693(94)01693-7

For the simplest minisuperspace model based on a homogeneous, isotropic metric and a minimally coupled scalar field we derive analytic expressions for the caustic which separates Euklidean and Minkowskian region and its breakdown value $\p_*$. This value represents the prediction of the no-boundary wave function for the scalar field at the beginning of inflation. We use our results to search for inflationary models which can render the no-boundary wave function consistent with the requirement of a sufficiently long inflationary period.

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