Bounce Inflation Cosmology And Data Analysis

With the advent of the age of accurate cosmology,inflationary cosmological models have been detected by more and more astronomical observation data.The researchers found that the model was highly consistent with almost all the data.However,there are also some data showing some anomalies,and even different data sources have different results on the model restrictions,such as the large-scale anoma-lies in the cosmic microwave background,the H0 opposite problem reflected by Gaia and Planck observations,etc.It also has some problems in theory,the most important of which is the problem of cosmological singularity.These abnormal phenomena and theoretical difficulties reflect that the inflation model needs more precise adjustment.In this paper,two theoretical models,galileon rebound inflation model and Axion single value model,are discussed.The former is mainly established to solve the sin-gularity problem,while the latter is established to explain the large-scale anomalies of the cosmic microwave background.The main mechanism of galileon's bouncing inflation model is to add a contrac-tion stage before the inflation,so as to avoid the singularity of the universe.In theory,galileon's rebound inflation model has gone through the process of slow contraction rebound inflation reheat,and finally evolved to the universe we observe now.In the observation,this paper uses the relevant data to limit the model,and gets the best value of the model.The galileon rebound inflation model solves the problem of ghost instability caused by breaking the zero energy condition(NEC).It describes that the universe enters the rebound period immediately after the end of the contraction period,and then evolves to the inflation period.It can ensure that the scale fac-tor wand Hubble parameter hare continuous in the rebound period,and reflect the fine structure of the rebound period.This paper mainly considers the limitations of Planck2015,BK14,BAO and JLA data on the rebound and inflation model,and gives the optimal value and CMB(thermal microwave background)temperature an-gle power spectrum(TT spectrum),which to some extent explains the phenomenon of CMB angle power spectrum depression,bulge and depression.The Axion monodoromy model is an interaction of sinusoidal oscillation gen-erated by the coupling of the inflation field and the Axion.The oscillation finally reflects on the large-scale depression of the angular power spectrum.This paper also simulates the next generation of primary gravitational wave detection(Ali primary gravitational wave detection project),and uses it in combination with the observation data of Planck 2018 to limit the axis sub model,and gives the relevant parameter values of the model.