On perturbations in Horndeski theories

被引:0
|
作者
Volkova, Victoria [1 ,2 ]
机构
[1] Russian Acad Sci, Inst Nucl Res, 60th October Anniversary Prospect,7a, Moscow 117312, Russia
[2] Moscow MV Lomonosov State Univ, Phys Fac, Dept Particle Phys & Cosmol, Moscow 119991, Russia
关键词
D O I
10.1051/epjconf/201818202127
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This research has been carried out in collaboration with R. Kolevatov, S. Mironov, V. Rubakov and N. Sukhov. We study the approach suggested by Deffayet et al. for obtaining a derivative part of the quadratic action for scalar perturbations in the cubic Horndeski theory. We analyse the validity of the approach and generalize it for the complete Horndeski theory. We explicitly check that the generalized method gives the correct result.
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页数:6
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