arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1507.02308hep-phastro-ph.COgr-qchep-th
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无规模通货膨胀

No-Scale Inflation

John Ellis, Marcos A. G. Garcia, Dimitri V. Nanopoulos, Keith A. Olive

摘要:

超对称性是TeV尺度以上物理学最自然的框架,而早期宇宙学(包括暴胀)的相应框架是超引力。无标度超引力产生于一般弦紧化,并产生非负势,因此是构建暴胀模型的合理框架。无标度暴胀自然产生类似于基于$R + R^2$引力的斯塔罗宾斯基模型的预测,具有倾斜的标量扰动谱:$n_s \sim 0.96$,以及小的张量-标量扰动比$r < 0.1$,这是普朗克和其他关于宇宙微波背景(CMB)的数据所支持的。对宇宙微波背景的详细测量,可能会让我们深入了解弦论中暴胀的嵌入,以及它与对撞机物理学的联系。

英文摘要:

Supersymmetry is the most natural framework for physics above the TeV scale, and the corresponding framework for early-Universe cosmology, including inflation, is supergravity. No-scale supergravity emerges from generic string compactifications and yields a non-negative potential, and is therefore a plausible framework for constructing models of inflation. No-scale inflation yields naturally predictions similar to those of the Starobinsky model based on $R + R^2$ gravity, with a tilted spectrum of scalar perturbations: $n_s \sim 0.96$, and small values of the tensor-to-scalar perturbation ratio $r < 0.1$, as favoured by Planck and other data on the cosmic microwave background (CMB). Detailed measurements of the CMB may provide insights into the embedding of inflation within string theory as well as its links to collider physics.

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。

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