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arXiv 2402.19086hep-ph
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宇宙暴胀、暗能量与引力波

Cosmic Inflation, Dark Energy and Gravitational Waves

Konstantinos Dimopoulos

AI总结:

本文综述宇宙暴胀与暗能量,介绍 Palatini 修正引力中的典型暴胀模型,并指出刚性状态方程时期可增强原初引力波特征频谱,有望近期观测并检验背景理论。

摘要:

我们简要讨论宇宙暴胀,它是解释宇宙大尺度结构生成以及安排热大爆炸初始条件的主导范式。随后,我们介绍典型暴胀(quintessential inflation),该理论也能解释观测到的暗能量。我们讨论如何在 Palatini 形式体系下的修正引力中成功建立典型暴胀模型。最后,我们聚焦暴胀产生原初引力波,以及早期宇宙经历刚性状态方程时期时其频谱如何被增强。这会产生具有特征频谱的引力波,很可能在不久的将来被观测到,从而为背景理论提供洞见。

英文摘要:

We briefly discuss cosmic inflation, which is the dominant paradigm for the generation of the large scale structure in the Universe and also for arranging for the initial conditions of the hot Big Bang. We then present quintessential inflation, which also accounts of the observed dark energy. We discuss how quintessential inflation can be successfully modelled in modified gravity in the Palatini formalism. Finally, we focus on the generation of primordial gravitational waves by inflation and how their spectrum can be enhanced when the early Universe goes through periods of stiff equation of state. This results in gravitational waves with a characteristic spectrum, which may well be observed in the near future, providing insights for the background theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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