论文标题

$α$ a $ attractor通货膨胀和重力波的预热约束

Preheating constraints in $α$-attractor inflation and Gravitational Waves production

论文作者

Bourakadi, K. El, Sakhi, Z., Bennai, M.

论文摘要

我们提出了一个方案,在特定持续时间内进行预热,该持续时间由e折数字$ n_ {pre} $参数化,我们的结果表明,在此阶段产生的引力波(GWS)密度的预热持续时间与预热持续时间之间存在直接相关性。此外,我们研究了通货膨胀参数对小$α$限制中$α$ a-aftractor e模型的后果。 In this framework, we perform investigations on the preheating parameters involving the number of e-folds $N_{pre}$, and the temperature of reheating $T_{re}$, then we show that the parameter $n$ associated with the E model of $α$-attractor inflation has a negligible effect on the preheating duration, and we demonstrate that gravitational wave generation during preheating satisfies the restrictions来自普朗克的最新数据。

We propose a scenario where preheating occurs for a specific duration that is parametrized by an e-folds number $N_{pre}$, our results suggest a direct correlation between the preheating duration and the density of gravitational waves (GWs) produced during this phase. Moreover, we investigate the consequences of the inflationary parameters on the $α$-attractor E model in the small $α$ limits. In this framework, we perform investigations on the preheating parameters involving the number of e-folds $N_{pre}$, and the temperature of reheating $T_{re}$, then we show that the parameter $n$ associated with the E model of $α$-attractor inflation has a negligible effect on the preheating duration, and we demonstrate that gravitational wave generation during preheating satisfies the restrictions from Planck's recent data.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源