论文标题
QCD幽灵暗能量的幻影宇宙学
Phantom cosmologies from QCD ghost dark energy
论文作者
论文摘要
我们回顾了文献中几乎没有研究的动态暗能模型，并引入了两个可能的概括。我们通过探索一些早期和后期的限制来分别讨论原始模型的行为，并最小化其扩展，我们发现宇宙组件与其参数状态相关。为了获得幻影制度，我们提出了从全息方法和早期宇宙中新兴的熵力模型中启发的两个暗能量密度。在第一种情况下，我们获得了III型奇异性，在第二个建议中，我们从减速到加速宇宙扩张的过渡开始，该扩张始于幻影类型。但是，宇宙的最后阶段是一个保安状态。
We review a dynamical dark energy model scarcely studied in the literature and we introduce two possible generalizations. We discuss separately the behavior of the original model and a minimal extension of it by exploring some early and late times limits, we find that the cosmic components are related by their parameters state. In order to have access to the phantom regime we present two dark energy densities inspired from the holographic approach and from the emergent entropic forces model in the early universe. For the first case we obtain a Type III singularity and in the second proposal we have a transition from decelerated to accelerated cosmic expansion that starts as phantom type. However, the final stage of the universe is a de Sitter state.
