Author： Tiwari R. K. Tiwari D. Shukla Pratibha
Publisher： IOP Publishing
ISSN： 0256-307X
Source： Chinese Physics Letters, Vol.29, Iss.1, 2012-01, pp. : 10403-10405
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Abstract
We consider a locally rotationally symmetric (LRS) Bianchi type-II spacetime with a perfect fluid and a variable cosmological constant Λ. To solve the Einstein field equations we consider the cosmological term Λ to be proportional to R−m with R being the scale factor and m a constant [Phys. Rev. D 58 (1998) 043506]. In this model we obtain Λ ~ H2, &; and Lambda ~ t−2, in agreement with the main dynamical laws for the decay of Λ. The physical significance of the cosmological model is also discussed.
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