软极限的分立宇宙方法
宇宙学与河外天体物理
2016-12-12 v3 广义相对论与量子宇宙学
高能物理 - 理论
摘要
我们发展了一种利用分立宇宙技术计算n点暴胀关联函数软极限的形式。我们的方法自然地允许多个场,并导向一种优雅的图解方法。作为应用,我们聚焦于多轻场暴胀产生的四点关联函数,给出了所有可能的单软和双软极限的显式公式。我们还研究了自洽性关系,并给出了软关联函数之间无穷级的不等式,这些不等式推广了Suyama-Yamaguchi不等式。
引用
@article{arxiv.1605.03435,
title = {The Separate Universe Approach to Soft Limits},
author = {Zachary Kenton and David J. Mulryne},
journal= {arXiv preprint arXiv:1605.03435},
year = {2016}
}
备注
28 pages, 7 figures. This is an author-created, un-copyedited version of an article published in JCAP. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at the DOI below. v3: Updated to match version published in JCAP