Unimodular mimetic F (R) inflation

被引：0

作者：

Odintsov, S. D. ^{[1
,2
,3
]}

Oikonomou, V. K. ^{[3
,4
]}

机构：

[1] Inst Space Sci IEEC CSIC, Cr Can Magrans S-N, Barcelona 08193, Spain

[2] Passeig LluAs Co, ICREA, Barcelona 08010, Spain

[3] Tomsk State Univ Control Syst & Radioelect TUSUR, Lab Theoret Cosmol, Tomsk 634050, Russia

[4] Tomsk State Pedag Univ, Tomsk 634061, Russia

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2016年 / 361卷 / 07期

关键词：

Modified gravity; f (R) gravity; Inflation; Extended theories of gravity; MODIFIED GRAVITY; COSMOLOGICAL PERTURBATIONS; DARK ENERGY; MODELS;

D O I：

10.1007/s10509-016-2826-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose the unimodular-mimetic F(R) gravity theory, to resolve cosmological constant problem and dark matter problem in a unified geometric manner. We demonstrate that such a theory naturally admits accelerating universe evolution. Furthermore, we construct unimodularmimetic F(R) inflationary cosmological scenarios compatible with the Planck and BICEP2/Keck-Array observational data. We also address the graceful exit issue, which is guaranteed by the existence of unstable de Sitter vacua.

引用

页数：10

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