The Future of Cosmology and the Role of Non-Linear Perturbations

作     者：Adam J.Christopherson 

作者机构：Astronomy UnitSchool of Mathematical SciencesQueen Mary University of LondonMile End RoadLondonE1 4NSUK 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2012年第57卷第2期

页      面：323-325页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：Science and Technology Facilities Council  STFC  (ST/F007566/1) 

主　　题：cosmology perturbation theory non-linear 

摘      要：Cosmological perturbation theory is a key tool to study the *** linear or first order theory is well understood,however,developing and applying the theory beyond linear order is at the cutting edge of current research in theoretical *** this article,I will describe some signatures of non-linear perturbation theory that do not exist at linear order,focusing on vorticity generation at second *** doing so,we discuss why this,among other features such as induced gravitational waves and non-Gaussianities,shows that cosmological perturbation theory is crucial for testing models of the universe.