Inflation in the universe

Details Inflation in the universe Inflation in the universe

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981natur.292...35b&link_type=abstract

Nature, vol. 292, July 2, 1981, p. 35-38. Research supported by the Miller Institute for Basic Research

Astronomy and Astrophysics

Astronomy

56

Background Radiation, Cosmology, Einstein Equations, Isotropic Media, Microwaves, Universe, Astronomical Models, Flatness, Homogeneity, Inflating, Radio Sources (Astronomy), Temperature Distribution

Scientific paper

Three problems are discussed in connection with the inflationary universe theory: the isotropy problem, through its microwave background radiation, the homogeneity-horizon problem with its large-scale homogeneity and small-scale inhomogeneity (in the form of galaxies), a problem compounded by the presence of horizons in known cosmological solutions to Einstein equations and the flatness problems studied by the Einstein-de Sitter model. Although Guth (1981) has discussed the inflationary universe as a possible natural explanation for the large-scale homogeneity and near critical density of the universal expansion, it is shown that the isotropy problem cannot be ignored: a universe with a moderate anisotropy will undergo inflation and will rapidly be isotropized.

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