Nonsingular cosmological models in Brans-Dicke theory

Details Nonsingular cosmological models in Brans-Dicke theory Nonsingular cosmological models in Brans-Dicke theory

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gregr..14..771j&link_type=abstract

General Relativity and Gravitation, vol. 14, Aug. 1982, p. 771-780.

Physics

Astronomical Models, Cosmology, Einstein Equations, Field Theory (Physics), Boundary Value Problems, Gravitational Constant, Helium, Space Density

Scientific paper

An attempt is made to construct nonsingular cosmological models in Brans-Dicke theory by taking the vacuum field as the long-range interacting scalar field which tends to avert the occurrence of initial singularity in a homogeneous and isotropic cosmological model. Such a model will possess an extremely small value of the coupling parameter, and thus will be different from the usual Brans-Dicke models. A justification for the estimated value of the coupling parameter is given with particular reference to the helium problem. The model depicts a reasonable picture of the observable Universe, except that the cosmic density in the model is slightly greater than the observed value

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