Chaotic inflation with metric and matter perturbations

Details Chaotic inflation with metric and matter perturbations Chaotic inflation with metric and matter perturbations

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..227..359f&link_type=abstract

Physics Letters B, Volume 227, Issue 3-4, p. 359-366.

Physics

24

Scientific paper

A perturbative scheme to analyze the evolution of both metric and scalar field perturbations in an expanding universe is developed. The scheme is applied to study chaotic inflation with initial metric and scalar field perturbations present. It is shown that initial gravitational perturbations with wavelength smaller than the Hubble radius rapidly decay. The metric simultaneously picks up small perturbations determined by the matter inhomogeneities. Both are frozen in once the wavelength exceeds the Hubble radius.

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