Inflation and dark energy from the Brans-Dicke theory

被引：10

作者：

Artymowski, Michal ^{[1
]}

Lalak, Zygmunt ^{[2
]}

Lewicki, Marek ^{[2
]}

机构：

[1] Jagiellonian Univ, Inst Phys, PL-30348 Krakow, Poland

[2] Univ Warsaw, Fac Phys, Inst Theoret Phys, PL-02093 Warsaw, Poland

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2015年 / 06期

关键词：

inflation; dark energy theory; modified gravity; cosmological parameters from CMBR; PARTICLE PHYSICS MODELS; MODIFIED GRAVITY; ACCELERATION; CURVATURE;

D O I：

10.1088/1475-7516/2015/06/031

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the Brans-Dicke theory motivated by the f(R) = R + alpha R-n - beta R2-n model to obtain a stable minimum of the Einstein frame scalar potential of the Brans-Dicke field. As a result we have obtained an inflationary scalar potential with non-zero value of residual vacuum energy, which may be a source of dark energy. In addition we discuss the probability of quantum tunnelling from the minimum of the potential. Our results can be easily consistent with PLANCK or BICEP2 data for appropriate choices of the value of n and omega.

引用

页数：16

共 37 条

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