Multi-field inflation: Formulation, effective theory and phenomenology

被引：0
|
作者：
Gong, J-O [1 ]
机构：
[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland
来源：
VISHWA MIMANSA: AN INTERPRETATIVE EXPOSITION OF THE UNIVERSE. PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON GRAVITATION AND COSMOLOGY | 2014年 / 484卷
关键词：
D O I：
10.1088/1742-6596/484/1/012057
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have described how to obtain the non-perturbative low energy effective field theory of single field inflation from a generic multi-field model by integrating out heavy fields. The features of heavy physics is described by the effective speed of sound, which leaves distinctive observational signatures in the correlation functions of the curvature perturbation.
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页数：4
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