Five dimensional universe model with variable cosmological term Λ and a big bounce
Source: Astrophysics and Space Science, Volume 310, Numbers 1-2, July 2007 , pp. 141-147(7)
Abstract: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 and Λ= H 2 where α and are constants and 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.
Document Type: Research Article
Publication date: July 1, 2007