论文标题
关于聚集暗能量的简短评论
A short review on clustering dark energy
论文作者
论文摘要
我们回顾了黑色能源模型，这些模型可能会在比哈勃半径小的尺度上呈现不可忽略的波动。讨论了暗能量波动的线性和非线性演变。线性演化具有一个完善的框架，基于一般相对性的线性扰动理论，并在数值代码中进行了良好的研究和实现。我们重点介绍了线性理论的主要结果，以解释黑暗能扰动如何在结构形成的范围内变得重要。接下来，我们审查了一些尝试在非线性崩溃模型的概括中了解非线性制度中聚类暗能模型的影响的尝试。我们批判性地讨论了球形崩溃模型的概括，该模型可以治疗聚类的暗能量模型及其缺点。审查了halo质量功能中的群集暗能模型的拟议实现。我们还讨论了一些能够治疗暗能量波动的数值模拟。最后，我们概述了基于这些模型的观察性预测。
We review dark energy models which can present non-negligible fluctuations on scales smaller than Hubble radius. Both linear and nonlinear evolutions of dark energy fluctuations are discussed. The linear evolution has a well-established framework, based on linear perturbation theory in General Relativity, and is well studied and implemented in numerical codes. We highlight the main results from linear theory to explain how dark energy perturbations become important on the scales of interest for structure formation. Next, we review some attempts to understand the impact of clustering dark energy models in the nonlinear regime, usually based on generalizations of the Spherical Collapse Model. We critically discuss the proposed generalizations of the Spherical Collapse Model that can treat clustering dark energy models and their shortcomings. Proposed implementations of clustering dark energy models in halo mass functions are reviewed. We also discuss some recent numerical simulations capable of treating dark energy fluctuations. Finally, we make an overview of the observational predictions based on these models.
