Does the non-minimal coupling of the scalar field improve or destroy inflation ?

Details Does the non-minimal coupling of the scalar field improve or destroy inflation ? Does the non-minimal coupling of the scalar field improve or destroy inflation ?

1998-07-23

arxiv.org/abs/gr-qc/9807066v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages, LaTeX, no figures, to appear in Proceedings of the 7th Canadian Conference on General Relativity and Relativistic Ast

Scientific paper

The non-minimal coupling of a scalar field to the Ricci curvature in a curved spacetime is unavoidable according to several authors. The coupling constant is not a free parameter: the prescriptions for the value of the coupling constant in specific scalar field and gravity theories (in particular in general relativity) are studied. The results are applied to the most popular inflationary scenarios of cosmology and their theoretical consistence is analysed. Certain observational constraints on the coupling constant are also discussed.

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