全息暗能量模型的标量场重构及其在 Chaplygin 气体、DBI、Yang-Mills 和 NLED 框架中的应用
Scalar Field Reconstructions of Holographic Dark Energy Models with Applications to Chaplygin Gas, DBI, Yang-Mills, and NLED Frameworks
AI总结:
本文研究了两种全息暗能量模型的宇宙学意义,推导了其在非相互作用与相互作用情况下的关键宇宙学参数解析式,并建立了这些模型与多种标量场框架(如 Chaplygin 气体、DBI、Yang-Mills 和 NLED)之间的对应关系。
摘要:
在本研究中,我们研究了由 Chen & Jing [modelhigher] 和 Granda & Oliveros [gohnde] 提出的两个 DE 模型的宇宙学意义。第一个模型包含三个主要部分:一个与 Hubble 参数 $ H $ 的平方成正比的项,以及分别与 $ H $ 的一阶和二阶时间导数成正比的两个附加项。第二个模型被称为 New Holographic Dark Energy (NHDE) 模型,可以看作是 Ricci DE 模型的推广,它包含一个与 Hubble 参数 $ H $ 的平方成正比的项和一个与 $ H $ 的一阶时间导数成正比的项。我们推导了约化 Hubble 参数平方 $ h^2 $、Dark Energy (DE) 的状态方程 (EoS) 参数 $ω_D $、DE 的压力 $p_D$ 以及减速参数 $ q $ 的解析表达式,考虑了非相互作用以及随后相互作用的 DM 和 DE。我们还考虑了所获得的积分常数的一些极限情况。此外,我们探讨了平坦的、暗能量主导的宇宙的极限场景,并建立了所提出的 DE 模型与各种标量场框架之间的对应关系。具体而言,我们考察了它们与 Generalized Chaplygin Gas、Modified Chaplygin Gas、Modified Variable Chaplygin Gas、Viscous Generalized Chaplygin Gas,以及基于 Dirac-Born-Infeld 理论、Yang-Mills 理论和 Nonlinear Electrodynamics 的标量场模型之间的联系。
英文摘要:
In this study, we investigate the cosmological implications of two DE models, introduced by Chen \& Jing \cite{modelhigher} and by Granda \& Oliveros \cite{gohnde}. The first model comprises three principal components: one term proportional to the Hubble parameter $ H$ squared, and two additional terms proportional to the first and second time derivatives of $ H $, respectively. The second model, known as New Holographic Dark Energy (NHDE) model, can be considered a generalization of the Ricci DE model and it contains a term proportional to the Hubble parameter $H$ squared and one to the first time derivative of $H$. We derive the analytical expressions for the reduced Hubble parameter squared $h^2$, the Equation of State (EoS) parameter of Dark Energy (DE) $ω_D $, the pressure of DE $p_D$ and of the deceleration parameter $q $ considering both non-interacting and later on interacting DM and DE. We also consider some limiting cases for the integration constants obtained. Furthermore, we explore the limiting scenario of a flat, dark energy-dominated Universe and establish a correspondence between the proposed DE models and various scalar field frameworks. Specifically, we examine their connection with the Generalized Chaplygin Gas, the Modified Chaplygin Gas, the Modified Variable Chaplygin Gas, the Viscous Generalized Chaplygin Gas, as well as scalar field models based on Dirac-Born-Infeld theory, Yang-Mills theory and Nonlinear Electrodynamics.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。