An ostentatious model of cosmological scalar-tensor theory

被引：1

作者：

Kan, Nahomi ^{[1
]}

Shiraishi, Kiyoshi ^{[2
]}

机构：

[1] Gifu Coll, Natl Inst Technol, Motosu, Gifu 5010495, Japan

[2] Yamaguchi Univ, Grad Sch Sci & Technol Innovat, Yamaguchi, Yamaguchi 7538512, Japan

来源：

MODERN PHYSICS LETTERS A | 2019年 / 34卷 / 19期

关键词：

Modified gravity; higher derivative gravity; MODIFIED GRAVITY; 4TH-ORDER GRAVITY; INFLATION; EQUATIONS; HISTORY;

D O I：

10.1142/S021773231950144X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider a novel model of gravity with a scalar field described by the Lagrangian with higher-order derivative terms in a cosmological context. The model has the same solution for the homogeneous and isotropic universe as in the model with the Einstein gravity, notwithstanding the additional higher-order terms. Finally, a possible modification scenario is briefly discussed.

引用

页数：9

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