The success of inflation with quadratic gravity

Details The success of inflation with quadratic gravity The success of inflation with quadratic gravity

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..226...31c&link_type=abstract

Physics Letters B, Volume 226, Issue 1-2, p. 31-35.

Physics

6

Scientific paper

We consider the inflationary behaviour of the R2 model with a FRW background. For initial scalar curvatures Ri>0 the universe collapses more readily than for the massive scalar field case when spatial curvatures are present. Only a small fraction of initial conditions lead to inflation when -MPl2<=Ri<=MPl2. We also comment on a recent instability suggested by Suen.

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