Nonlinear behaviors of cosmological inhomogeneities with a standard fluid and inflationary matter

Details Nonlinear behaviors of cosmological inhomogeneities with a standard fluid and inflationary matter Nonlinear behaviors of cosmological inhomogeneities with a standard fluid and inflationary matter

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phrvd..50.7216t&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 50, Issue 12, 15 December 1994, pp.7216-7221

Mathematics

Logic

23

Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

Nonlinear behaviors of cosmological inhomogeneities are studied in the anti-Newtonian or long-wavelength approximation. They consist of a standard fluid and inflationary matter. The latter is an inflationary fluid or a scalar field. After the initially dominant local anisotropy has decreased, they become quasiisotropic. If the density of the standard fluid is dominant at this stage, the inhomogeneities grow with time, but, as the density of the inflationary matter increases, it is shown that the growth is gradually prevented and finally they decay. After the inflation they again grow due to the irregular spatial curvature. The generality of the solutions is also discussed.

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