典型的膨胀和曲率再加热

IF 1.8 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

International Journal of Modern Physics D Pub Date : 2023-10-21 DOI:10.1142/s021827182350092x

Abhineet Agarwal, Sabit Bekov, Kairat Myrzakulov

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引用次数: 3

摘要

本文考虑了一个基于逆双曲势的典型暴胀模型。我们采用比重力粒子产生更有效的曲率机制进行再加热;该机制符合遗留重力波的核合成约束。我们得到了控制曲率与物质场相互作用的耦合常数[公式:见原文]的下界。我们研究了控制前的曲率衰减和控制后的曲率衰减，并在这两种情况下绘制了参数空间中的允许区域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Quintessential Inflation and curvaton reheating

In this paper, we consider a model of quintessential inflation based upon inverse hyperbolic potential. We employ curvaton mechanism for reheating which is more efficient than gravitational particle production; the mechanism complies with nucleosynthesis constraint due to relic gravity waves. We obtain a lower bound on the coupling constant [Formula: see text] that governs the interaction of curvaton with matter fields. We study curvaton decay before domination and decay after domination and plot the allowed region in the parameter space in both cases.

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来源期刊

International Journal of Modern Physics D 地学天文-天文与天体物理

CiteScore

3.80

自引率

9.10%

发文量

181

审稿时长

4-8 weeks

期刊介绍： Gravitation, astrophysics and cosmology are exciting and rapidly advancing fields of research. This journal aims to accommodate and promote this expansion of information and ideas and it features research papers and reviews on theoretical, observational and experimental findings in these fields. Among the topics covered are general relativity, quantum gravity, gravitational experiments, quantum cosmology, observational cosmology, particle cosmology, large scale structure, high energy astrophysics, compact objects, cosmic particles and radiation.