一种非最小耦合暗能量模型的研究

Study on a Kind of Non-Minimal Coupling Dark Energy Models

摘要: 本文研究的是一种非最小耦合暗能量模型。在这种暗能量模型中，作为暗能量的标量场与引力的耦合形式为F(∅)=1+α∅²。我们研究了该暗能量场的特征和演化行为，并分析了选取不同的参数对模型的影响。通过分析，发现参数α对模型的演化有关键性的作用——暗能量是否一直表现为Quintessence场。

Abstract: This paper studies a kind of non-minimum coupling dark energy models. In the dark energy models, the coupling form of the dark energy as a scalar field and gravity is  F(∅)=1+α∅². We studied the characteristics and evolution behavior of the dark energy field, and analyzed the influence of different parameters on the models. Through analysis, it is found that the parameter α plays a key role in the evolution of the model—whether the dark energy always appears as a Quintessence field.