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arXiv · 0801.4529

The dark energy equation of state

A. A. Usmani·P. P. Ghosh·Utpal Mukhopadhyay·P. C. Ray·Saibal Ray
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Abstract

We perform a study of cosmic evolution with an equation of state parameter $ω(t)=ω_0+ω_1(t\dot H/H)$ by selecting a phenomenological $Λ$ model of the form, $\dotΛ\sim H^3$. This simple proposition explains both linearly expanding and inflationary Universes with a single set of equations. We notice that the inflation leads to a scaling in the equation of state parameter, $ω(t)$, and hence in equation of state. In this approach, one of its two parameters have been pin pointed and the other have been delineated. It has been possible to show a connection between dark energy and Higgs-Boson.

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A. A. Usmani, P. P. Ghosh, Utpal Mukhopadhyay, P. C. Ray, Saibal Ray. 2008-03-11. The dark energy equation of state. https://doi.org/10.1111/j.1745-3933.2008.00468.x

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