Abstract： The Bianchi type-III cosmological model for a cloud string in the presence of bulk viscosity and magnetic field are presented. To obtain the determinate model it is assumed that there is an equation of state ρ=kλ and the scalar of expansion is proportional to the shear scalar θ α σ, which leads to a relation between metric potentials B=mCn. The physical and geometric aspects of the model are also discussed. The model describes a shearing non-rotating continuously expanding universe with a big-bang start. In the absence of magnetic field, it reduces to the string model with bulk viscosity that was previously given in the literature.
(Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.))
引用本文:
WANG Xing-Xiang. Bianchi Type-III String Cosmological Model With Bulk Viscosity and Magnetic Field[J]. 中国物理快报, 2006, 23(7): 1702-1704.
WANG Xing-Xiang. Bianchi Type-III String Cosmological Model With Bulk Viscosity and Magnetic Field. Chin. Phys. Lett., 2006, 23(7): 1702-1704.
2006, Vol. 23 
