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Bianchi Type-III String Cosmological Models with Time Dependent Bulk Viscosity |
| BALI Raj1;PRADHAN Anirudh2 |
| 1Department of Mathematics, University of Rajasthan, Jaipur-302 004, India
2Department of Mathematics, Hindu Post-Graduate College, Zamania-232 331, Ghazipur, India |
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| Cite this article: |
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BALI Raj, PRADHAN Anirudh 2007 Chin. Phys. Lett. 24 585-588 |
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Abstract Bianchi type-III string cosmological models with bulk viscous fluid for massive string are investigated. To obtain the determinate model of the universe, we assume that the coefficient of bulk viscosity ξ is inversely proportional to the expansion θ in the model and expansion θ in the model is proportional to the shear σ. This leads to B = l Cn, where l and n are constants. Behaviour of the model in the presence and absence of bulk viscosity is discussed. The physical implications of the models are also discussed in detail.
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98.80.Cq
04.20.-q
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Received: 03 November 2006
Published: 24 February 2007
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| PACS: |
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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04.20.-q
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(Classical general relativity)
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