论文标题

关于耦合的暗能量和滚筒的独立观点

Model-Independent Perspectives on Coupled Dark Energy and the Swampland

论文作者

Yang, Tao

论文摘要

我们提出了一种与模型无关的方法,用于研究耦合的暗能量和弦滚动标准。我们展示了在宇宙扩展的背景下,黑暗扇区相互作用如何通过暗能状态的方程式退化。对于他们中的任何一个,都可以将黑暗能量和黑暗扇区相互作用的动态与沼泽标准的边界一起重建。结合宇宙天文序列,重子振荡(BAO)和IA型超新星,我们的结果表明,在低红移时,黑暗扇区相互作用的$1σ$对于耦合的典范而言。 $ z = 2.34 $的lyman-$α$ bao在高红移时引起了$2σ$非零交互信号。讨论了对耦合典型的影响。

We present a general model-independent approach to study the coupled dark energy and the string Swampland criteria. We show how the dark sector interaction is degenerated with the equation of state of dark energy in the context of the expansion of the Universe. With priors for either of them, the dynamics of dark energy and the dark sector interactions can be reconstructed together with the bounds of the Swampland criteria. Combining cosmic chronometers, baryon acoustic oscillation (BAO), and Type Ia supernovae our results suggest a mild $1 σ$ significance of dark sector interactions at low redshift for the coupled quintessence. The Lyman-$α$ BAO at $z=2.34$ leads a $2 σ$ signal of nonzero interactions at high redshift. The implications for coupled quintessence are discussed.

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