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arXiv 1404.7852hep-thastro-ph.CO
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弦论中的对齐自然暴胀

Aligned Natural Inflation in String Theory

Cody Long, Liam McAllister, Paul McGuirk

摘要:

我们提出了一个方案,实现超普朗克轴子衰变常数的卡-丘定向折叠的IIB型弦论,导致大领域的通货膨胀。我们的结构是金、尼尔斯和佩洛索机制的弦论的一个简单嵌入,其中一个大的有效衰变常数来自于两个较小衰变常数的排列。其关键成分是磁化或多重缠绕的D 7-膜上的高吉诺凝聚。我们认为,在非常温和的假设下的拓扑结构的卡-丘,有可控点的模空间与大的有效衰减常数。

英文摘要:

We propose a scenario for realizing super-Planckian axion decay constants in Calabi-Yau orientifolds of type IIB string theory, leading to large-field inflation. Our construction is a simple embedding in string theory of the mechanism of Kim, Nilles, and Peloso, in which a large effective decay constant arises from alignment of two smaller decay constants. The key ingredient is gaugino condensation on magnetized or multiply-wound D7-branes. We argue that, under very mild assumptions about the topology of the Calabi-Yau, there are controllable points in moduli space with large effective decay constants.

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