Anisotropic Cosmological Models with Variable G and Decaying Vacuum Energy

Details Anisotropic Cosmological Models with Variable G and Decaying Vacuum Energy Anisotropic Cosmological Models with Variable G and Decaying Vacuum Energy

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ijtp...47.1559s&link_type=abstract

International Journal of Theoretical Physics, Volume 47, Issue 6, pp.1559-1570

Physics

3

Bianchi Type Universe, Vacuum Energy, Variable G And &Lambda

Scientific paper

We present Bianchi type-I cosmological models with a perfect fluid source and time-dependent gravitational and cosmological constants based on new exact solutions of Einstein’s equations. The perfect fluid is chosen to obey a barotropic equation of state. The models obtained represent a radiation dominated phase and a dust era. In some of the models the expansion changes from a decelerating phase to an accelerating one and these models asymptotically tend to the de Sitter universe.

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