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arXiv 1407.8063hep-phastro-ph.COgr-qchep-th
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具有大张量比的可重正化三项多项式暴胀

The Renormalizable Three-Term Polynomial Inflation with Large Tensor-to-Scalar Ratio

Tianjun Li, Zheng Sun, Chi Tian, Lina Wu

摘要:

本文系统地研究了超对称和非超对称模型中可重正化的三项多项式暴胀。超对称暴胀子势可以在超引力理论中实现,并且只有两个独立的参数。我们证明了一般的可重整化超引力模型等价于我们的一类超对称模型。我们发现谱指数和张量标量比与Planck和BICEP 2的结果一致,但谱指数的变化总是超出$2σ$的范围.如果我们不考虑BICEP 2实验,这些暴胀模型可以与普朗克观测高度一致,并在张量标量比($r \le 0.11$)上达到饱和。因此,我们的模型可以在未来的普朗克和QUBIC实验进行测试。

英文摘要:

We systematically study the renormalizable three-term polynomial inflation in the supersymmetric and non-supersymmetric models. The supersymmetric inflaton potentials can be realized in supergravity theory, and only have two independent parameters. We show that the general renormalizable supergravity model is equivalent to one kind of our supersymmetric models. We find that the spectral index and tensor-to-scalar ratio can be consistent with the Planck and BICEP2 results, but the running of spectral index is always out of the $2σ$ range. If we do not consider the BICEP2 experiment, these inflationary models can be highly consistent with the Planck observations and saturate its upper bound on the tensor-to-scalar ratio ($r \le 0.11$). Thus, our models can be tested at the future Planck and QUBIC experiments.

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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