arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2505.03608gr-qcastro-ph.COhep-th
收藏

保持Starobinsky模型与无标度超引力之间的对应关系ACTive

Keeping the relation between the Starobinsky model and no-scale supergravity ACTive

Ioannis D. Gialamas, Theodoros Katsoulas, Kyriakos Tamvakis

AI总结:

本文通过在Starobinsky模型中引入立方Ricci曲率项,建立了其与无标度超引力中超势修改的对应关系,并验证了在特定参数范围内模型与最新宇宙微波背景观测数据一致。

摘要:

我们引入对Starobinsky模型的一种修改,形式为一个额外的三次Ricci标量曲率项 $\sim αR^3$,由一个无量纲参数 $α$ 标度,所得的暴胀子势是标准Starobinsky势在一阶参数修正下增加一个附加项。所得势与在无标度超引力框架中构建Starobinsky模型时通过修改超势所获得的势完全相同,从而扩展了一类无标度超引力模型与Starobinsky模型修改之间的对应关系。我们分析了该模型的暴胀预言,发现对于 $-4.2 \times 10^{-5} \lesssim α \lesssim -1.9 \times 10^{-5}$,修改后的Starobinsky模型与阿塔卡马宇宙学望远镜最近公布的观测数据完全一致,适用于 $e$-fold数范围 $N_\star = 50-60$。

英文摘要:

We introduce a modification of the Starobinsky model in the form of an additional cubic Ricci scalar curvature term $\sim αR^3$, scaled by a dimensionless parameter $α$, with the resulting inflaton potential being the standard Starobinsky potential modified to first parametric order by an additive term. The resulting potential is identical to the potential obtained by a modification of the superpotential employed in the construction of the Starobinsky model in the framework of no-scale supergravity, thus, extending the correspondence between a class of no-scale supergravity models and modifications of the Starobinsky model. We analyze the inflationary predictions of the model and find that for $-4.2 \times 10^{-5} \lesssim α\lesssim -1.9 \times 10^{-5}$, the modified Starobinsky model is in full agreement with the recent observational data from the Atacama Cosmology Telescope, for a range of $e$-folds, $N_\star = 50-60$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑