Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1999-05-27
Mod.Phys.Lett. A14 (1999) 1083
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
LATEX, 6 pages, selected for honorable mention in the 1999 Essay Competition of the Gravity Research Foundation. To appear in
Scientific paper
10.1142/S0217732399001164
We give a consistent description of how the inflationary Universe emerges in quantum cosmology. This involves two steps: Firstly, it is shown that a sensible probability peak can be obtained from the cosmological wave function. This is achieved by going beyond the tree level of the semiclassical expansion. Secondly, due to decoherence interference terms between different semiclassical branches are negligibly small. The results give constraints on the particle content of a unified theory.
Barvinsky Andrei
Kamenshchik Alexander
Kiefer Claus
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