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Exploring the possibility of interacting quintessence model as an alternative to the $$\Lambda $$ CDM model
General Relativity and Gravitation ( IF 2.8 ) Pub Date : 2023-10-15 , DOI: 10.1007/s10714-023-03160-1
Nandan Roy

This study examines interacting quintessence dark energy models and their observational constraints for a general parameterization of the quintessence potential, which encompasses a broad range of popular potentials. Four different forms of interactions are considered. The analysis is done by expressing the system as a set of autonomous equations for each interaction. The Bayesian Model Comparison has been used to compare these models with the standard Lambda Cold Dark Matter (\(\Lambda \)CDM) model. Our analysis shows positive and moderate evidence for the interacting models over the \(\Lambda \)CDM model. We also report the status of the Hubble tension for these models, even though there is an increment in the best-fit value of the Hubble parameters, these models can not resolve the Hubble tension.



中文翻译:

探索交互精髓模型替代 $$\Lambda $$ CDM 模型的可能性

这项研究研究了相互作用的精髓暗能量模型及其对精髓势的一般参数化的观察约束,其中涵盖了广泛的流行势。考虑了四种不同形式的交互。通过将系统表示为每次相互作用的一组自主方程来完成分析。贝叶斯模型比较已用于将这些模型与标准 Lambda 冷暗物质 ( \(\Lambda \) CDM) 模型进行比较。我们的分析显示了相对于\(\Lambda \) CDM 模型的相互作用模型的积极和适度的证据。我们还报告了这些模型的哈勃张力的状态,即使哈勃参数的最佳拟合值有所增加,这些模型也无法解析哈勃张力。

更新日期:2023-10-16
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