Two-field high-scale inflation in a sub-Planckian region of field space

Two-field high-scale inflation in a sub-Planckian region of field space
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场空间亚普朗克区域中的两场高尺度暴胀

DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
Stefan Sjors
Stefan Sjors
中科院分区:
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文献类型:
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作者:
M. Berg;E. Pajer;Stefan Sjors

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我们提出了一个简单的双场膨胀模型,并展示了如何将其嵌入弦理论中,作为轴子单态模型的直接推广。在现象学上,这些预测与混沌暴胀的预测是等价的,特别是包括可观测到的大张量模式。整个高尺度大场暴胀动力学发生在直径参数为亚普朗克的场空间区域内,从而提高了我们控制量子修正和实现慢滚暴胀的能力。
We present a simple two-field model of inflation and show how to embed it in string theory as a straightforward generalization of axion monodromy models. Phenomenologically, the predictions are equivalent to those of chaotic inflation, and, in particular, include observably large tensor modes. The whole high-scale large-field inflationary dynamics takes place within a region of field space that is parametrically sub-Planckian in diameter, hence improving our ability to control quantum corrections and achieve slow-roll inflation.