Cosmological models with coherent scalar field oscillations in fourth-order gravity

Details Cosmological models with coherent scalar field oscillations in fourth-order gravity Cosmological models with coherent scalar field oscillations in fourth-order gravity

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986cqgra...3..183g&link_type=abstract

Classical and Quantum Gravity (ISSN 0264-9381), vol. 3, March 1, 1986, p. 183-192.

Mathematics

Logic

16

Big Bang Cosmology, Gravitation Theory, Gravitational Fields, Quantum Theory, Unified Field Theory, Astronomical Models, Asymptotic Properties, Coherent Radiation, Polarization (Waves), Scalars, Space-Time Functions, Systems Stability

Scientific paper

Spatially flat Friedman models driven at early times by a coherent scalar field and the vacuum polarization are considered. Maxima and minima as well as an inflationary expansion of the scale factor result from both effects. The possibility of a start of the cosmological expansion at a finite bounce is a welcome property, but in the flat model it leads to an unstable late-time behavior.

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