相互作用暗能量模型的研究现状

Status of the Study of Interacting Dark Energy Models

本文简要介绍了相互作用暗能量模型研究的最新进展。首先介绍了几种目前比较流行的相互作用暗能量模型,接着详细分析了国内外在该领域的研究现状及发展动态。其中,针对大尺度不稳定性问题,本文着重强调了用来处理相互作用暗能量宇宙学扰动的参数化后弗里德曼(parametrized post-Friedmann,简称PPF)方法。研究表明该方法能够成功地在相互作用暗能量模型全部参数空间中消除其大尺度不稳定性问题。

In this paper, we briefly introduce the present status of the study of interacting dark energy (IDE) models. Firstly, we introduce several currently popular models of dark energy interacting with dark matter. Then, we analyze the research status in this field and development tendency at home and abroad. Note here that, in order to solve the large-scale instability of IDE, we describe the para-metrized post-Friedmann (PPF) approach, which could handle the cosmological perturbations of IDE. It has been proved that the PPF framework of IDE can successfully solve the large-scale insta-bility issue in the whole parameter space.