论文标题
雪人白皮书：宇宙学的有效现场理论
Snowmass White Paper: Effective Field Theories in Cosmology
论文作者
论文摘要
统一和各向同性扩大背景周围的微小波动是宇宙学研究的主要对象。它们的起源和进化对通货膨胀和后期宇宙中发生的物理过程敏感。因此，他们是回答宇宙学上许多主要开放问题的关键。鉴于在许多感兴趣的示例中，相关量表很大的分离，对这些波动的最自然描述是根据有效的现场理论提出的。这是理论上宇宙学中许多重要现代发展的主要途径，该途径为众多宇宙学模型提供了一个统一的框架，并在基本宇宙学参数和可观察到的基本宇宙学参数之间建立了明确的联系。在这篇综述中，我们将这些结果总结在通货膨胀，大规模结构和暗能量的有效领域理论的背景下。
Small fluctuations around homogeneous and isotropic expanding backgrounds are the main object of study in cosmology. Their origin and evolution is sensitive to the physical processes that happen during inflation and in the late Universe. As such, they hold the key to answering many of the major open questions in cosmology. Given a large separation of relevant scales in many examples of interest, the most natural description of these fluctuations is formulated in terms of effective field theories. This was the main avenue for many of the important modern developments in theoretical cosmology, which provided a unifying framework for a plethora of cosmological models and made a clear connection between the fundamental cosmological parameters and observables. In this review we summarize these results in the context of effective field theories of inflation, large-scale structure, and dark energy.
