A model of the Universe with a variable G and a decaying vacuum energy.

Details A model of the Universe with a variable G and a decaying vacuum energy. A model of the Universe with a variable G and a decaying vacuum energy.

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996injpb..70..321a&link_type=abstract

Indian J. Phys., Part B, Vol. 70B, No. 4, p. 321 - 332

Mathematics

Logic

2

Cosmological Models: Gravitational Constant

Scientific paper

A geometrically closed but ever-expanding R-W model of the Universe admitting a contracted Ricci-collineation along the fluid flow vector with variables G and Λ has been presented. The model evolves from rest from a non-singular hot origin with maximum radiation and vacuum energy densities and a minimum (non-zero) gravitational coupling G which increases and vacuum decays with expansion in a manner consistent with the conservation of energy momentum tensor of matter content. The estimates of the present values of various cosmological parameters have been calculated.

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