Curvature dependent bulk viscosity in a (D + 1) dimensional cosmology leading to slow expansion

Details Curvature dependent bulk viscosity in a (D + 1) dimensional cosmology leading to slow expansion Curvature dependent bulk viscosity in a (D + 1) dimensional cosmology leading to slow expansion

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phys...40....9w&link_type=abstract

Physica Scripta (ISSN 0031-8949), vol. 40, no. 1, July 1989, p. 9-11.

Statistics

Computation

2

Computational Astrophysics, Cosmology, Evolution (Development), Relativistic Particles, Topology, Viscosity

Scientific paper

A homogeneous and isotropic (D + 1) dimensional metric and a matter content described by ultrarelativistic particles with bulk velocity represented by a coefficient that depends on the square root of the curvature is assumed. It is found that the positive curvature topology leads to a slowly varying linear expansion that may precede the usual period of inflation commonly accepted in cosmological scenarios. The flat spatial topology leads to a cosmology expanding to an infinite radius in an inverse power law fashion.

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