Constant-roll inflation with a complex scalar field

被引：0

作者：

Herrera, Ramon ^{[1
]}

Shokri, Mehdi ^{[2
,3
,4
]}

Sadeghi, Jafar ^{[5
]}

机构：

[1] Pontificia Univ Catolica Valparaiso, Inst Fis, Ave Brasil 2950, Casilla 4059, Valparaiso, Chile

[2] Damghan Univ, Sch Phys, POB 3671641167, Damghan, Iran

[3] Univ Tehran, Dept Phys, North Karegar Ave, Tehran, Iran

[4] Canadian Quantum Res Ctr, 204-3002 32 Ave, Vernon, BC V1T 2L7, Canada

[5] Univ Mazandaran, Dept Phys, POB 47416-95447, Babolsar, Iran

来源：

ANNALS OF PHYSICS | 2024年 / 467卷

关键词：

Complex scalar field; Constant-roll inflation; Cosmic microwave background; QUANTUM COSMOLOGY; UNIVERSE SCENARIO; DARK ENERGY; PERTURBATIONS; QUINTESSENCE; CONSTRAINTS; DYNAMICS; FLATNESS; GRAVITY; HORIZON;

D O I：

10.1016/j.aop.2024.169705

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider inflation with a constant rate of rolling in which a complex scalar field plays the role of inflaton during the inflationary epoch. We implement the inflationary analysis for an accredited angular speed 6 which satisfies our dynamical equations. Scalar and tensorial perturbations generated in the framework of constant roll inflation with a complex field are studied. In this respect, we find analytically solutions to the gauge invariant fluctuations, with which an expression for the scalar power spectrum together with its scalar index spectral in this scenario were found. By comparing the obtained results with the observations coming from the cosmic microwave background anisotropies, the constraints on the parameters space of the model and also its predictions are analyzed and discussed.

引用

页数：11

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