Higgs inflation model with non-minimal coupling in hybrid Palatini approach

Higgs inflation model with non-minimal coupling in hybrid Palatini approach
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混合帕拉蒂尼方法中具有非最小耦合的希格斯暴胀模型

DOI:
10.1088/1674-1137/ad1dcd
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发表时间:
2022
期刊:
影响因子:
3.6
通讯作者:
T. Ouali
T. Ouali
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
B. Asfour;Aatifa Bargach;A. Errahmani;T. Ouali

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在本文中,我们提出了一个混合度量Palatini方法,其中Palatini标量曲率是非极小耦合的标量场。我们推导出爱因斯坦的场方程,即,标量场的运动方程此外,背景和微扰参数得到的Friedmann方程在慢滚区。对宇宙学扰动的分析使我们能够获得主要的暴胀参数,例如,标量谱指数和张量与标量比r。从这个角度来看,作为我们分析的应用,我们考虑了具有四次势的希格斯场,它扮演着暴胀子的角色,并表明希格斯混合暴胀的预测与最近的观测数据吻合得很好[Astron.Astrophys. 641,61(2020)]。
In this paper, we propose a hybrid metric Palatini approach in which the Palatini scalar curvature is non minimally coupled to the scalar field. We derive Einstein's field equations, i.e., the equations of motion of the scalar field. Furthermore, the background and perturbative parameters are obtained by means of Friedmann equations in the slow roll regime. The analysis of cosmological perturbations allowed us to obtain the main inflationary parameters, e.g., the scalar spectral index and tensor to scalar ratio r. From this perspective, as an application of our analysis, we consider the Higgs field with quartic potential, which plays the inflaton role, and show that predictions of Higgs hybrid inflation are in good agreement with recent observational data [Astron. Astrophys. 641, 61 (2020)].
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者:
Sumimoto H;Minakami R;Miyano K
通讯作者: Miyano K