Generalized inflation from R-cubed and R square R terms

Details Generalized inflation from R-cubed and R square R terms Generalized inflation from R-cubed and R square R terms

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991an....312..291g&link_type=abstract

Astronomische Nachrichten (ISSN 0004-6337), vol. 312, no. 5, 1991, p. 291-297.

Astronomy and Astrophysics

Astronomy

9

Gravitation Theory, Space-Time Functions, Astronomical Models, Inflating, Relativistic Theory, Strange Attractors

Scientific paper

Generalized inflationary stages as power-law solutions result from the addition of R-cubed and R square R terms to the quadratic gravitational Lagrangian. Both contributions lead to new attractor solutions in the high-curvature limit. The properties of critical values of the curvature scalar in the R-cubed theory are emphasized. Contrarily to models with two scalar fields, the higher order curvature terms allow double inflation for special conditions only.

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