Five dimensional universe model with variable cosmological term Λ and a big bounce

Details Five dimensional universe model with variable cosmological term Λ and a big bounce Five dimensional universe model with variable cosmological term Λ and a big bounce

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ap%26ss.310..141k&link_type=abstract

Astrophysics and Space Science, Volume 310, Issue 1-2, pp. 141-147

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

We assume the four dimensional induced matter of the 5D Ricci flat bouncing cosmological solution contains a perfect fluid. The big bounce singularity of simple 5D cosmological model is studied with the cosmological term Λ=α ρ and Λ=β H 2 where α and β are constants and ρ and H are respectively energy density and Hubble parameter. This big bounce singularity is found to be an event horizon at which the scale factor and mass density of the universe are finite, while the pressure is infinite.

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