Bianchi Type I String Cosmological Models with Bulk Viscosity and Magnetic Field |
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Authors: | Xing-Xiang Wang |
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Institution: | (1) Department of Physics, Anhui Normal University, Anhui, 241000, P.R. China |
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Abstract: | Some locally rotationally symmetric (LRS) Bianchi type I cosmological models for a cloud string with bulk viscosity and magnetic
field are presented. Where an equation of state ρ = kλ and a relation between metric potential R = AS
n are considered. The solution describes a shearing and nonrotating model with a big bang start. In the absence of magnetic
field it reduces to a string model with bulk viscosity, where the relation between the coefficient of bulk viscosity and energy
density is ζ ∝ ρ1/2. After choosing k =
, it further reduces to a string model without viscosity and magnetic field.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | string cosmological model Bianchi type I space-time bulk viscosity magnetic field |
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