宇宙反弹暴涨模型及其观测检验

宇宙暴涨理论已被观测强烈地支持，由于其是检验物理学基本理论的天然实验室，因此暴涨宇宙学一直是基础物理学的研究前沿。不过与之相关的宇宙学奇点和原初扰动的超Planck（Trans-Planckian）问题一直没有解决，这促使人们认为宇宙在暴涨之前或许有一个反弹。本项目将深入研究反弹暴涨模型，旨在解决理论与观测检验中的关键科学问题，从宇宙微波背景大尺度反常的拟合中分析反弹有效场论的物理，同时结合超Planck监督猜想，完善非奇异宇宙学的有效场论，探讨其紫外行为，及其与基本理论的联接。

The theory of cosmic inflation has been strongly supported by observations, it is a natural lab testing the fundamental theory, so it has always been the research frontier of cosmology. However, a puzzle related to the cosmological singularity and the trans-Planckian problem of primordial perturbations has not been solved, which makes people start to think about the pre-inflationary physics, that is, the universe has a bounce before the inflation. This project will study the theory and observation test of bounce inflation model. It mainly solves the related problems in the data fitting of bounce inflation model, and analyzes the physics of effective field theory of bounce from the fitting for the large-scale nomaly of cosmic microwave background. At the same time, it improves the effective field theory of nonsingular cosmology, discusses its ultraviolet behavior, and its connection with the fundamental theory with the trans-Planckian censorship conjecture.