Dark Energy from $alpha$-Attractors
Dark Energy from $alpha$-Attractors
复制标题
来自$alpha$-吸引子的暗能量
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
E. Linder
中科院分区：
文献类型：
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作者：
E. Linder
最近研究了一类称为$alpha$-吸引子的暴胀理论，其具有在二次势、Starobinsky模型和吸引子极限之间插值的有趣性质。在这里，我们将研究它们在晚期宇宙加速中的应用。我们概括的类，并演示了它如何可以插入之间的解冻和冻结暗能量，并减少微调的初始条件，允许$waprox-1$为一个较长的时间或作为德西特吸引。
A class of inflation theories called $alpha$-attractors has been investigated recently with interesting properties interpolating between quadratic potentials, the Starobinsky model, and an attractor limit. Here we examine their use for late time cosmic acceleration. We generalize the class and demonstrate how it can interpolate between thawing and freezing dark energy, and reduce the fine tuning of initial conditions, allowing $wapprox-1$ for a prolonged period or as a de Sitter attractor.