Inflationary universe with gravity

Details Inflationary universe with gravity Inflationary universe with gravity

May 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983phrvd..27.2285m&link_type=abstract

Physical Review D (Particles and Fields), Volume 27, Issue 10, 15 May 1983, pp.2285-2293

Physics

21

Scientific paper

The original idea of the inflationary universe is shown to be consistent with observation, if the effects of spacetime curvature are considered. Specifically, a combined grandunified-gravitational tunneling solution exists, which is homogeneous over the entire spatial section and has lower action than the flat-space, inhomogeneous bubble. Thus, the exit from the metastable de Sitter phase can occur gracefully, without generating large spatial inhomogeneities or magnetic monopoles. The large expansion factor is generated naturally by the tunneling amplitude and does not require fine tuning the initial conditions of the post-tunneling evolution. Fluctuations in this model may differ substantially from the roll-over picture.

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