The inflationary universe from the viewpoint of general relativity

Details The inflationary universe from the viewpoint of general relativity The inflationary universe from the viewpoint of general relativity

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986zhetf..90.1900d&link_type=abstract

Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki (ISSN 0044-4510), vol. 90, June 1986, p. 1900-1907. In Russian.

Mathematics

Logic

5

Big Bang Cosmology, Relativity, Universe, Scaling Laws, Vacuum

Scientific paper

The geometry of the early universe during the transition from the vacuum-dominated stage to the radiation-dominated stage is discussed. A phenomenological cosmological model is considered which describes the geometry of the universe during this transition. The duration of the transition and the size of the universe at the end of the transition stage are determined by matching the transition metric with that of the standard Friedmann model, and can be expressed in terms of observable characteristics of the universe. A comparison of these results with the predictions of inflationary descriptions shows that the problem of determining the scale factor for a universe experiencing in the course of evolution a vacuum-dominated stage requires further study.

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