Evolution of perturbations in an inflationary universe

Details Evolution of perturbations in an inflationary universe Evolution of perturbations in an inflationary universe

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...259..437f&link_type=abstract

Astrophysical Journal, Part 1, vol. 259, Aug. 15, 1982, p. 437-441.

Astronomy and Astrophysics

Astrophysics

29

Cosmology, Perturbation Theory, Space Density, Universe, Astronomical Models, Einstein Equations, Inhomogeneity, Relativity

Scientific paper

The evolution of inhomogeneous density perturbations in a model of the very early universe that is dominated for a time by a constant energy density of a false quantum-mechanical vacuum is analyzed. During this period, the universe inflates exponentially and supercools exponentially, until a phase transition back to the true vacuum reheats the matter and radiation. Focus is on the physically measurable, coordinate-independent modes of inhomogeneous perturbations of this model and it is found that all modes either are constant or are exponentially damped during the inflationary era.

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