An exact analytic formula for ln(H(z)/H0) in the Lambert W cosmic fluid model, obtained by evaluating log-integral antiderivatives of the Lambert W function.
Growth of Perturbations using Lambert$W$ Equation of State
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
Recently, a novel equation of state (EoS) parameter for dark energy has been introduced which deals with a special mathematical function, known as the Lambert$W$ function. In this paper, we study the effect on the growth of perturbations for the Lambert$W$ dark energy model. We perform the analysis for two different approaches. In the first case we consider the universe to be filled with two different fluid components, namely, the baryonic matter component and the Lambert$W$ dark energy component, while in the second case we consider that there is a single fluid component in the universe whose equation of state parameter is described by the Lambert$W$ function. We then compare the growth rates of Lambert$W$ model with that for a standard $\Lambda$CDM model as well as the CPL model. Our results indicate that the presence of Lambert$W$ dynamical dark energy sector changes the growth rate and affects the matter fluctuations in the universe to a great extent.
citation-role summary
background 1
citation-polarity summary
fields
math-ph 1years
2026 1verdicts
CONDITIONAL 1roles
background 1polarities
unclear 1representative citing papers
citing papers explorer
-
Analytic Integration of the Lambert W Cosmic Fluid Model H(z) Formula
An exact analytic formula for ln(H(z)/H0) in the Lambert W cosmic fluid model, obtained by evaluating log-integral antiderivatives of the Lambert W function.