Work

Origin of the Inflationary Universe

Year: 1999

Type: article

Abstract: We give a consistent description of how the inflationary universe emerges in quantum cosmology. This involves two steps: (a) 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. (b) Due to decoherence interference terms between different semiclassical branches are negligibly small. The results give constraints on the particle content of a unified theory.

Source: Modern Physics Letters A

DOI: 10.1142/s0217732399001164

Authors: ANDREI O. BARVINSKY, ALEXANDER YU. KAMENSHCHIK, CLAUS KIEFER

Institutions: P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Russian Academy of Sciences, Landau Institute for Theoretical Physics, University of Freiburg

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Deutsche Forschungsgemeinschaft, Russian Foundation for Basic Research, Albert-Ludwigs-Universität Freiburg

OpenAlex ID: W2015699477

FWCI: 0.668

Cites: 14

Cited by: 9

Related to: 10