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arXiv 0712.0535hep-thastro-phhep-ph
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跑道膨胀中n_s < 0.95的鲁棒性

The Robustness of n_s < 0.95 in Racetrack Inflation

Ph. Brax, Stephen C. Davis, M. Postma

摘要:

谱指数n_s < 0.95似乎是跑道暴胀模型的一般预测。将一般的跑道模型简化为具有简单势的单场暴胀模型,得到了谱指数的解析表达式,解释了这一结果。通过考虑的有效性的限制的推导,可能的方式来实现更高的值的光谱指数进行了描述,虽然这些需要进一步微调的潜力。

英文摘要:

A spectral index n_s < 0.95 appears to be a generic prediction of racetrack inflation models. Reducing a general racetrack model to a single-field inflation model with a simple potential, we obtain an analytic expression for the spectral index, which explains this result. By considering the limits of validity of the derivation, possible ways to achieve higher values of the spectral index are described, although these require further fine-tuning of the potential.

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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