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Locally Rotationally Symmetric Bianchi Type-I String Cosmological Model with Bulk Viscosity |
| WANG Xing-Xiang |
| Department of Physics, Anhui Normal University, Wuhu 241000 |
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| Cite this article: |
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WANG Xing-Xiang 2004 Chin. Phys. Lett. 21 1205-1207 |
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Abstract A locally rotationally symmetric (LRS) Bianchi type-I string cosmological model with bulk viscosity is investigated. To obtain a determinate solution, it is assumed that the coefficient of bulk viscosity is a
power function of the energy density = 0ρm and the scalar of expansion is proportional to the shear scalar θ ∝ σ, which leads to a relation between metric potentials R = ASn, where R and S are only the functions of time. The physical and geometrical aspects of the model are also discussed. The solution includes some results previously given in the literature as special cases.
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04.20.Jb
98.80.Cq
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Published: 01 July 2004
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| PACS: |
04.20.Jb
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(Exact solutions)
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98.80.Cq
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(Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.))
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