How does inflation isotropize the Universe\?

Details How does inflation isotropize the Universe\? How does inflation isotropize the Universe\?

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvd..43.3821a&link_type=abstract

Physical Review D (Particles and Fields), Volume 43, Issue 12, 15 June 1991, pp.3821-3832

Physics

13

Scientific paper

The lack of a preferred frame in the de Sitter metric leads one to argue that the end of inflation should result in an inhomogeneous rather than a homogeneous universe. Statements to the contrary have relied on scalar perturbation theory around an isotropic background. We show that to analyze properly the problem requires the introduction of velocities, implying an inhomogeneous scalar field φ and minimally an anisotropic background. We find by both analytic and numerical calculations that inflation does not isotropize the Universe in the short-wavelength limit λR<

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