NDLI: Linearly Varying Deceleration Parameter in Viscous Bianchi Type I Universe

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Linearly Varying Deceleration Parameter in Viscous Bianchi Type I Universe

Content Provider	Springer Nature Link
Author	Singh, Pratibha Singh, J. P. Bali, Raj
Copyright Year	2013
Abstract	We investigate a class of cosmological models in the background of homogeneous and anisotropic Bianchi type I space–time for viscous fluid distribution by constraining the deceleration parameter in the presence of dark energy represented by a time-varying cosmological constant. We discuss, in the context of some vacuum decay laws, the cosmological implications of the corresponding solutions. The models have finite life time. They start with a big bang and end in a big rip. The models isotropize and the presence of shear viscosity accelerates the isotropization process. The variations of different cosmological parameters are shown graphically.
Starting Page	129
Ending Page	136
Page Count	8
File Format	PDF
ISSN	03698203
Journal	Proceedings of the National Academy of Sciences, India Section A: Physical Sciences
Volume Number	83
Issue Number	2
e-ISSN	22501762
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-05-07
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Viscosity Deceleration parameter Applied and Technical Physics Bianchi type I Vacuum energy Atomic, Molecular, Optical and Plasma Physics Quantum Physics Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Biochemistry, Genetics and Molecular Biology

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