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Anisotropic Brane Cosmology with Variable $G$ and $Λ$

Soma Nath·Subenoy Chakraborty·Ujjal Debnath
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Abstract

In this work, the cosmological implications of brane world scenario are investigated when the gravitational coupling $G$ and the cosmological term $Λ$ are not constant but rather there are time variation of them. From observational point of view, these time variations are taken in the form $\frac{\dot{G}}{G}\sim H$ and $Λ\sim H^{2}$. The behavior of scale factors and different kinematical parameters are investigated for different possible scenarios where the bulk cosmological constant $Λ_{5}$ can be zero, positive or negative.

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Soma Nath, Subenoy Chakraborty, Ujjal Debnath. 2004-11-27. Anisotropic Brane Cosmology with Variable $G$ and $Λ$. https://doi.org/10.1088/1475-7516%2F2004%2F11%2F012

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