Anisotropic inflation with general potentials  

作　　者：JiaMing Shi XiaoTian Huang TaoTao Qiu 

机构地区：[1]Department of Physics Science and Technology, Central China Normal University [2]Institute of Astrophysics, Central China Normal University

出　　处：《Science China(Physics,Mechanics & Astronomy)》2016年第4期48-57,共10页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the Project of Undergraduates’Training Program for Innovation/Venturing;Central China Normal University(Grant No.B2014179)

摘　　要：Anomalies in recent observational data indicate that there might be some "anisotropic hair" generated in an inflation period. To obtain general information about the effects of this anisotropic hair to inflation models, we studied anisotropic inflation models that involve one vector and one scalar using several types of potentials. We determined the general relationship between the degree of anisotropy and the fraction of the vector and scalar fields, and concluded that the anisotropies behave independently of the potentials. We also generalized our study to the case of multi-directional anisotropies.Anomalies in recent observational data indicate that there might be some ＂anisotropic hair＂ generated in an inflation period. To obtain general information about the effects of this anisotropic hair to inflation models, we studied anisotropic inflation models that involve one vector and one scalar using several types of potentials. We determined the general relationship between the degree of anisotropy and the fraction of the vector and scalar fields, and concluded that the anisotropies behave independently of the potentials. We also generalized our study to the case of multi-directional anisotropies.

关 键 词：inflation vector field CMB anisotropies 

分 类 号：P159[天文地球—天文学]