A simple F(R, φ) deformation of Starobinsky inflationary model

被引：0

作者：

Canko, Dhimiter D. ^{[1
,2
]}

Gialamas, Ioannis D. ^{[1
]}

Kodaxis, George P. ^{[1
]}

机构：

[1] Univ Athens, Dept Phys, Zografos 15784, Greece

[2] NCSR Demokritos, Inst Nucl & Particle Phys, Aghia Paraskevi 15310, Greece

来源：

EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 05期

关键词：

PARTICLE PHYSICS MODELS; MODIFIED GRAVITY; INITIAL CONDITIONS; NATURAL INFLATION; UNIVERSE SCENARIO; PHASE-TRANSITION; HIGGS-BOSON; GENERATION; SCALARON; DYNAMICS;

D O I：

10.1140/epjc/s10052-020-8025-4

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 study a model including a real scalar field phi non-minimally coupled to F(R) gravity, which is conformally equivalent to an Einstein-Hilbert theory, involving two real scalar fields. We consider three special cases of the potential of the field phi in the F(R)-frame: a vanishing potential, a mass term and a Higgs potential. All these lead to non-trivial two-field potentials in the Einstein-frame which in particular directions resemble the well-known Starobinsky model. We find, that all these cases can yield viable inflationary models in complete agreement with current observational data.

引用

页数：13

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