Integrable cosmological models with an additional scalar field

被引：10
|
作者：
Ivanov, Vsevolod R. [1 ]
Vernov, Sergey Yu. [2 ]
机构：
[1] Lomonosov Moscow State Univ, Phys Dept, Leninskie Gory 1, Moscow 119991, Russia
[2] Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Leninskie Gory 1, Moscow 119991, Russia
来源：
EUROPEAN PHYSICAL JOURNAL C | 2021年 / 81卷 / 11期
基金：
俄罗斯基础研究基金会;
关键词：
MODIFIED GRAVITY; HIGGS INFLATION; DYNAMICS;
D O I：
10.1140/epjc/s10052-021-09792-4
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We consider modified gravity cosmological models that can be transformed into two-field chiral cosmological models by the conformal metric transformation. For the R-2 gravity model with an additional scalar field and the corresponding two-field model with the cosmological constant and nonstandard kinetic part of the action, the general solutions have been obtained in the spatially flat FLRW metric. We analyze the correspondence of the cosmic time solutions obtained and different possible evolutions of theHubble parameters in the Einstein and Jordan frames.
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页数：11
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