String Cosmological Model with Bulk Viscosity in Higher Dimensional Space Time

Details String Cosmological Model with Bulk Viscosity in Higher Dimensional Space Time String Cosmological Model with Bulk Viscosity in Higher Dimensional Space Time

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confq..72k&link_type=abstract

"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 72-72"

Mathematics

Logic

Scientific paper

We have investigated the bulk viscous fluid string dust cosmological model in the higher dimensional space-time. To obtain a determinate solution, it is assumed that the coefficient of bulk viscosity is a power function of the scalar of expansion τ =Aθmt and the scalar of expansion is proportional to shear scalar, which leads to a relation between metric potentials A= KRn where A and R are function of time. It is also shown that bulk viscosity plays an important role on the evolution of the universe. The physical and geometrical aspects of the model are also discussed.

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