论文标题
使用兰伯特$ W $国家方程的扰动增长
Growth of Perturbations using Lambert$W$ Equation of State
论文作者
论文摘要
最近，引入了一个新颖的状态方程（EOS）参数，该参数涉及一种特殊的数学功能，称为Lambert $ w $函数。在本文中，我们研究了兰伯特$ W $暗能量模型的扰动增长的影响。我们对两种不同的方法进行分析。在第一种情况下，我们认为宇宙中充满了两个不同的流体成分，即Baryonic Matters组件和Lambert $ W $ Dark Energy成分，而在第二种情况下，我们认为宇宙中有一个单个流体成分，其状态参数方程由Lambert $ w $ w $函数描述。然后，我们将Lambert $ W $模型的增长率与标准$λ$ CDM型号以及CPL型号进行了比较。我们的结果表明，Lambert $ W $动态暗能量部门的存在改变了增长率，并在很大程度上影响了宇宙中的物质波动。
Recently, a novel equation of state (EoS) parameter for dark energy has been introduced which deals with a special mathematical function, known as the Lambert$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 $Λ$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.
