论文标题
全息ricci de作为非线性相互作用的真空运行
Holographic Ricci DE as running vacuum with nonlinear interactions
论文作者
论文摘要
全息RICCI暗能量可以视为跑步真空，因为它的能量密度类比，该真空的组合是$ h $和$ \ dot H $，该模型可以预测永恒的加速或永恒的减速。在较早的作品中，我们已经表明，通过现象学术语，能量密度中的添加剂常数或通过考虑黑暗扇区之间的相互作用，该模型可以预测从先前减速到晚期加速时期的过渡。本文分析了全息ricci暗能量的宇宙演化，作为一种跑步真空，在平坦的FLRW宇宙中，黑暗扇区之间存在非线性相互作用。我们考虑三种可能的非线性交互形式，这些形式提供了分析可行的解决方案。我们已经使用Type1a Supernova（Pantheon）+CMB（Planck 2018）+BAO（SDSS）数据来限制模型，并评估了所有模型参数的最佳估计值。我们已经分析了所有三种情况的哈勃参数和减速参数的演变。我们对模型进行状态查找器分析，这意味着模型的精髓性质，发现它与标准$λ$ CDM模型有明显的不同。对所有三种情况的动态系统分析证实了宇宙从不稳定的先前物质主导的时代到稳定的末端DE Sitter阶段的演变。
The holographic Ricci dark energy can be treated as a running vacuum due to its analogy in the energy density, which is a combination of $H$ and $\dot H$, the model can predict either eternal acceleration or eternal deceleration. In the earlier works, we have shown that the presence of additive constant in the energy density or by considering possible interaction between dark sectors through a phenomenological term, the model can predict a transition from a prior decelerated to a late accelerated epoch. This paper analyses the cosmic evolution of holographic Ricci dark energy as a running vacuum with a nonlinear interaction between dark sectors in a flat FLRW universe. We consider three possible nonlinear interaction forms which give analytically feasible solutions. We have constrained the model using the Type1a Supernova(Pantheon)+CMB(Planck 2018)+BAO(SDSS) data and evaluated the best-estimated values of all the model parameters. We have analyzed the evolution of the Hubble parameter and deceleration parameter of all three cases. We perform state finder analysis of the model, which implies the quintessence nature of the model and found that it is distinguishably different from the standard $Λ$CDM model. The dynamical system analysis of all three cases confirms the evolution of the universe from an unstable prior matter-dominated era to a stable end de Sitter phase.
