Inflation in scalar-tensor gravity with quadratic Gauss-Bonnet self-interactions

Details Inflation in scalar-tensor gravity with quadratic Gauss-Bonnet self-interactions Inflation in scalar-tensor gravity with quadratic Gauss-Bonnet self-interactions

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phlb..287...56g&link_type=abstract

Physics Letters B, Volume 287, Issue 1-3, p. 56-60.

Physics

14

Scientific paper

We present cosmological solutions for a graviton-plus-dilaton system coupled to a perfect fluid source, including quadratic curvature corrections. We show that, even in the absence of a dilaton self-interaction potential, isotropic superinflation (H>0) can be realized for a wide range of equations of state, which includes in particular the ordinary cases of dust matter and radiation. It is found that in this context inflation can be produced more efficiently than in previous superinflationary models based on the contraction of internal dimensions.

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