Stable cosmological solutions in Horndeski theory

被引:6
|
作者
Mironov, S. [1 ,2 ,3 ]
Shtennikova, A. [1 ,4 ]
机构
[1] Russian Acad Sci, Inst Nucl Res, 60th October Anniversary Prospect,7a, Moscow 117312, Russia
[2] Lomonosov Moscow State Univ, Inst Theoret & Math Phys, Moscow 119991, Russia
[3] NRC Kurchatov Inst, Moscow 123182, Russia
[4] Moscow MV Lomonosov State Univ, Phys Fac, Dept Particle Phys & Cosmol, Moscow 119991, Russia
基金
俄罗斯科学基金会;
关键词
cosmological perturbation theory; Gauss-Bonnet-Lovelock-Horndeski-Palatini etc gravity theories; physics of the early universe; FIELD-EQUATIONS;
D O I
10.1088/1475-7516/2023/06/037
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
It is known that the construction of a completely stable solution in Horndeski theory is restricted very strongly by the so-called no-go theorem. Previously, various techniques have been used to avoid the conditions of the theorem. In this paper a new way of constructing stable solutions are shown in the general Horndeski theory. We considered the situation in which the unitary gauge studied earlier turns out to be singular. On this basis we construct a spatially flat, stable bouncing and genesis Universe solutions which are described by General Relativity with non-conventional scalar field.
引用
收藏
页数:21
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